Of course it could still go down from here. Even below $100! At best we're only slowly getting back into a bull market now but we're definitely not there yet!
That being said, I don't think we see prices below $100 again - ever. Back in 2011 people also waited for things to go below $1...
People said that about $300. People also said that $300 had a lot of buy support, and now $200. But then nobody can really know. IMO it's a good time to buy and accumulate right now, regardless of price.
Lets be real, it has been a living nightmare to bring it down under 200$, and it bounced back up like a ping-pong ball, and with every step back the struggle was greater, so what in the world would make someone think it can go below 100$? I may be too optimistic, but i dont think i am, its more realistic than optimistic. Under 200 ? no problem, it may happen, but under 100 i think never again.
I would personaly love it if that happens, but i wouldnt sell a satoshi even if i were starving to death, i would just buy more and more, until blisters appear on my finger from pressing "buy btc"