To hopefully answer the question OP asked,
in this link here - Weave 64 Xbox - Vermintide 2 / Vermintide 2 - Technical Support - Fatshark Forums (fatsharkgames.com) Julia states theres going to be a weaves patch in early June, and said “It’s my understanding you will have plenty of time to complete it once the patch is shipped, as we’re wary people will be seriously upset otherwise!”. So I’d likely guess 6 months?