How would YOU bring Data back?
In my campaign I don't want Data to be lost permanently. I don't want to change things we have seen on screen, but what happens after Nemesis still is somewhat unwritten, isn't it.
Aside from the possibility of using Lore ("Out-of-the-box-Data") or B 4 (Growing-Up-Data) I thougt about some plot twist about a certain Romulan Commander Sela, a cloaked Warbird in the battlezone and an abduction.
In my thoughts about the aftermath of Nemesis Sela plays an important role as a new powerful figure in the empire.
Do you have any other ideas as how to bring Data back in a Star Trek conform way?