On second thought, the Sino-Vietnamese split has mostly blown over after the USSR's collapse, I doubt they'd go over to a resurgent USSR. They're more closely following Chinese communism now. If the USSR did reappear (a tall order, it'd be like Germany ever putting Reich back in their name), I think being even nominally communist would start to mean something again, and they wouldn't be as cozy with the rest of SE Asia.
I'd also note that a lot of these areas would probably be independent, not a part of any bloc. Iran would probably never join a Sunni dominated Islamic League, for example, and India prided itself on its neutrality during the cold war (RIP Yugo, o7).
I'd also like to make a joke about Israel still existing in a world without US international influence, but I've gone on about Israel enough in the past.
That said, Laos and Vietnam are still more likely to maintain their support for ASEAN over China, unless crushed militarily by Beijing. When it comes to deciding between enemies, it's better to side with the enemy at a remove than the enemy right next door, as they have done with both the USSR and USA. If Communism starts to "mean something", then if anything, they should side with the USSR, but remember that even in the historical Cold War, that sort of little turn of phrase still didn't stop Western money from pouring into Yugoslavia in the form of national and IMF loans, and they wouldn't actually unite politically with the USSR; if nothing else, power projection across a hostile state gets really difficult, really fast, unless you get rid of said hostile state. Ideological purity didn't stop Hoxa from flipping to join China's side of the great split, either; power politics plus ideology will always trump ideology alone.
Thoughts on the map:
• United States of Northern America and Israel (USNAI): This feels *really* weird. Why would Israel ever join with a political body half a world away? Why would a protectionist verging on isolationist America ever accept them?
• People's Republics of China and Korea (PRCK): I can't tell from the resolution, but is Taiwan supposed to be in this or the "ASEAN+2"?
• The Second Union of Soviet Socialist Republics (USSR): Ummm, if this is the consequence of a military conquest, you should redraw the Ukrainian borders to illustrate a Russian diktat. I still think it's silly to have the Great Second Coming, though; if you need a "bad-guy" state, it'd make more sense as a post-Putin Greater Russia based on Orthodoxy, national chauvinism, and anti-Western rhetoric.
• The European Union (EU): Erdogan has been steadily moving closer to Russia, and away from the EU, while also utilizing just enough Islamist rhetoric for his own ends to appeal to the hardliners as well. It feels a little odd to see Turkey aligned with the EU, when it's not even in the EU and when its association status with the precursors to that polity have been stalled for over half a century.
• The Islamic League of Nations (ILN): This is really, really odd. Iran should not be in here unless it's been conquered, in which case it should be a hotbed of unrest. One of *the* major rivalries of the Middle East, just behind Israel-everyone, is the rivalry between Iran and the Gulf States. This has expressed itself, just in the last 15 years alone, in Syria, Lebanon, Iraq, Yemen, eastern Saudi Arabia, Bahrain...the list continues. A Wahhabi Sunni and a Shi'a state uniting peacefully should be about as likely as Israel peacefully uniting with Syria, or the whole of Ukraine with Russia. Azerbaijan should be with Iran, whichever way they go. Bangladesh should be with India or China; its populace is very warm towards India (who helped them in their war for independence), the US, and China, and very much not so towards Pakistan (who they fought the war against). Indonesia should be its own nation or still aligned with ASEAN. Much of Central Asia should probably be aligned with Russia or China, depending on how economic and political trends have proceeded. South Sudan, unless conquered, should be in the sub-Saharan blob; they just fought a decades-long civil war not too long ago to reject Sudanese rule. Sierra Leone should be the same; leaving aside that this nation has had rather low incidence rates of extremism or religious violence (most violence has been political), how is an Islamist state projecting power and political strength here through Guinea? On the flip side, Eritrea should be a member, if it's just an Islamist generi-blob; it should probably not be in the same country as Ethiopia, given the two nations' strained relations. If it is an Islamist generi-blob, why are Guinea and Guinea-Bissau (just at a bare minimum) separate? If Turkey isn't an independent neutral playing the three sides against each other and if the USSR remains Communist, it should probably be here.
• The Greater Indian Empire (GIE): See Bangladesh above.
• The Association of South-East Asian Nations (ASEAN): Vietnam and Laos should remain here. Indonesia should either be here; Burma should either be here (if the present dictatorship has fallen) or aligned with China (if it survives); India is also an outside possibility, albeit more unlikely.
• The South and Central African League (SCAL): Ummmm...I really apologize for this, but it's just a catch-all nation where you piled in all the junk that wouldn't fit elsewhere in the name of a megastate, disregarding political, diplomatic, cultural, religious, or economic motivations. I've done it more than once myself, but I really can't say anything to justify it.
Also, I strongly recommend fewer megablobs and more independent nations. If this is for a PNP game, ostensibly-neutral grounds where hostile powers with "correct" relations can manoeuvre politically for their own cause, situations in which the player can manipulate these to their own end or be tossed about by the same currents. Think Casablanca or Tangiers. In Shadowrun, think Seattle.