I think biggie would have reached his peak lyrically
Biggie didn't seem to be mourning pac death at all, but I believe pac going to a god like level would have had him make a "we will survive, where did we go wrong pac" type of song.
I think biggie would have expanded and started to do music with no limit records, dmx, eve etc.
I think biggie as a competitor would have taken his beefs with nas and wu tang specifically Rae and ghost more public
I think biggie would have went harder at his own record company might have split with puff by his 3rd album and put cam and diplomats on a whole different level. I also believe biggie would have been the person to discover guys like beanie Siegal and 50 Cent and put them on.
Biggie was true artist, he would have found his way. He was not just made great because of his death, he truly was a special talent.