Picard helping him along and then strolling down the Enterprise passageway.
I've always liked that scene as an homage to an almost identical scene from TOS with Kirk. Musically, the tender "Blue Skies" riff, symbolically suggesting that perhaps Data is in fact not really as gone as we thought transitions hopefully into the end credits march with it's bold Courage fanfare over the shot of Enterprise
under reconstruction letting the audience know that indeed, one journey may be over, but the next one is ready to begin.
It's bad luck that Nemesis wound up being the last Trek Prime movie. It's not a great film, but it's a very good film. It leaves me wanting more.
Unfortunately, for good or ill, Trek Prime will likely never be revisited either on the big screen or the small screen.