Hossin is no longer "under constructrion" according to the loading screen, but there are still prefab 'construction site' bases littered around the map (though some of them have been renamed). There have been some interesting looking facilities put down but the most interesting one (I think it's called fort drexler?) is so close to a warpgate that it's unlikely to see as much action as one of the prefab bases near the center of the continent.
Plus, the Valkyrie is still extremely underwelming, they need to put a pilot operated nosegun on it or something, make squad logistics a default option, and make it hover similarly to a galaxy (especially considering it's supposed to be easier to fly than an ESF, they need to add some training wheels for newer pilots). Actually, vehicles in general need to be looked into, and the resource system needs to be fixed. Basically tanks should be tougher but require more investment, so you don't throw one out and pull another as soon as it dies, rinse, repeat.
There are plenty of things in the game that aren't really finished or just have basic functionality (mission system, squad/platoon management) and some things that were thrown in as an effort to make some money (buying attachments with money even though they were one of the few things only available with in-game currency, and they don't even apply to all weapons of the same category which is the only reason you'd get them with SC. Then there's the whole implant system. People are putting up a huge stink because they nerfed the effects of lower tier Battle Hardened implant then increased the amount of screen shake. "Spend money to have normal screen shake" people are saying.).