Why is there any mention of continuity problems?
Remember, that last spaceship design did not replace the others. It was shown stowing them below the hull, acting as a mothership carrier. This could very easily be one of those which either acted in an escape pod role or went on its business, only to have things go wrong when it did so.
After all, a hunting trip back to Earth on one of those smaller ships would make sense, yes? Perhaps the Predalien stows away aboard it?
Or maybe, as I always thought, that Predator body was not ignored... It was placed in a stasis field to allow them access to a Predalien. They might as well use it if they can do, instead of incinerating it, right?
Colin started it when he mentioned the word 'changes'... We all shivered and trembled and started screaming ...
Actually, the change in designs is a minor continuity problem, not a BIG one... In my mind, in terms of repeated decors in Sequels, the original and the sequel or sequels should feel as one, meaning that, for example, in this case, the ship's exterior should be the same one, but inside it could be explored in a different way, on different parts of the ship, but in a way that could be an extension, more than a 'correction' of what we have seen before in AVP... Build on it, but not change it dramatically and drastically...
I say this because there is a chance we might not like the changes and then where would we be..?
I admire, though, the courage of the brothers in risking to do changes that could very easily backfire on them... in this day and age of flavourless sequels, they are taking risks which is always refreshing, wouldn't you say...?