It would be nice to be able to design the format of OFP's main menu. This would allow customization of the location and look of clickables, such as CAMPAIGNS, MISSIONS, etc. Maybe allow placing of a private logo jpg somewhere, too (e.g., squad emblem).
In addition, it would be nice if the user could define the starting island anim. And it would be even better if multiple anims could be played per island either in a given sequence or at random.
And, finally, it would be nice if BIS allowed player made island anims to contain custom music tracks.