Eh. If it's fun to try to weave the new data into your outline, then go for it, but I wouldn't stress about it. This is what "Canonical through 3x16" tags are for. Open-canon fandoms are infinitely branching universes, no branch of which is less true, or less delightful to read, than the next. After Tuesday's ep., my own headcanon adjusted to, "50/50 chance they haven't had penetrative sex at all, yet," based my very subjective reading of Kurt's body language. Your K&B have never matched my headcanon, but I still think they're an important iteration for a number of reasons.