If you ask me, I would reply that it all depends
If SegWit gets activated somehow against all odds (say, Satoshi himself comes out of his hide-out and pushes strongly for SegWit activation), then it is a no-brainer that Bitcoin will spike spectacularly (but then Satoshi's very appearance could boost prices on its own). If SegWit gets postponed for an indefinite amount of time (which seems to be the most likely outcome as of now), it kinda looks Bitcoin prices will continue to stagnate with occasional pump and dump now and then. Ultimately, people may start leaving Bitcoin (if they don't already) and moving to altcoins which might offer them greater opportunities to earn profits