You are always allowed to ask anything you wish, just with the caveat that either:
I don't know the answer.
Can't answer
Or may leave it up to Jim just how much he wants to answer.
But you will always get a response.
At this point as far as I know from what Jim has told me, he is working on the new background items and has about 50% of those done in 3D, with the rest to go. While I have seen a completed shot of what he is shooting for, I don't know exactly which items are done and which aren't at this point. The new tank is faithful to the original with many extras added in. Realize that items could change as the need arises during creation.
As to the fish, I don't know if he has made a decision on releasing it with the fish we have now and upgrading them afterwards, or will want to redo the fish before release.