I think BTC reaching 100K is also a psychological mark for many of us in crypto, given that it'll have arrived at 6 figures, reaching a new stage of evolution, so to speak.
On a more serious note, before a strong correction happens, BTC may probably cross 100K, given that the momentum and anticipation of reaching that landmark figure is still there.
It is most definitely a psychological mark. And I think so too, that a major correction will either follow either after the threshold is passed or due to the inability to cross it.