I am hearing conflicting things from players in game. Is the forge/drop event really going to the 20th, or did the server maint on Wednesday mess the rates up?

I understand a 100% or so boost adds little to the actual %, but I'd like to know if that fraction is there or not. It does make a big difference in my experience.

Also, is it true that a new map will drop items like guild stones? I have heard this a few times and am wondering if it can be confirmed. Thanks.