I feel ambivalent about the CETA thing. On the one hand, I'm in favor of trade deals and closer co-operation between countries, but on the other hand I've heard that the deal, as it stands now, has some ugly notes in it, such as the whole companies-suing-countries part.
Then again, it's not like governments don't sometimes engage in (unfair) protectionist measures, and I've read that courts such as these (such as in NAFTA) usually judge in favor of the country. But I'd have to be able to actually do the digging to form an informed opinion, and these things are always humongous texts of lawyerese. Also note that the Walloon government isn't the only entity that has voiced concerns, organisations like Greenpeace have argued against it, and there have been large demonstrations against it (and it's cousin, TTIP).
That said, the deal isn't buried yet, there's still talks ongoing. The deadline of Thursday will probably be missed, but after seven years I doubt either the EU or Canada will just blow the whole thing off instead of waiting a little longer and maybe making some last concessions/clarifications. It might yet live, with some delays.
Finally, I'm anxiously awaiting the staunch eurosceptics of the world to come out and congratulate the EU on letting even a small part of it block an agreement the majority agrees to in a blaze of sovereign power.