Xenonauts 2 couldn't pick a worse time to release tbh. Only 4 days after JA3, unless they have insider info that this game is so short, that people will beat it in 4 days and will yearn for more of similar stuff.
Is it actually interesting. Because if it's just a Xenonauts mk2 and just a rehash of few other games glued together without theirs own effort. Who would care about half baked game made by people with low programming skills?
On the positive side, just because people would pony money for JA3, that doesn't mean they wouldn't pony money for Xenonauts 2.
Just game development should be about art, and about making games that developer wants to play. If this is just made to earn money, who cares.
Frankly, Epic would have as promo Murder by Numbers for free at that time as well. So, that would be also competitor. OK main character is brownie, there are people with weird rainbow hair colors. But, it's for free so why not try it. Xenonauts... Well, if you played 1 is there any innovation or some reason to play 2?
And with JA3 is there sex drugs and violence, or is it just a cash grab that uses names of previous games to earn bigger profit?