Is he actually *in* this story, though? I want to see him (or some Soong-type android) outside of dreams or flashbacks.
I assume from the first trailer that B-4 will appear because, following on from the ending to Nemesis, Starfleet is trying to resurrect Data via the files he copied over to B-4.
They already did that in Countdown + Star Trek Online, as David Mack did separately in the novels by Pocket Books. Now a high-budget TV series will do a own canon take on the storyline because Data is way too beloved a character for Picard's showrunners to leave alone.