This is it i guess, Taichi can finally move on for real, tbh i don't want another painful or obsessed moment coming from him. His love arc for Chihaya reached it's conclusion, he cuts his hair (which always implies "moving on" or get over it), admittingly said his feelings can fade... totally a sign of maturity. I hope the author will end it for real and focused on Queen & Meijin match for climax.
Honestly i have a feeling this might end with Chihaya not gonna end up with both of them, Arata is huge possibility but who knows what author will do.