I, personally, have an issue with any gimmick "remove X" weekends... WvW was designed around various elements, and taking things out only makes it fun for 1 side of the equation... and that's not healthy. While certain "remove X" may seem "fun" on initial thought, we must ask ourselves "Is this fun when it happens to me?" first...
Hypothetically, let's say the devs toy with an idea to remove downstate for a weekend... And a player constantly get "1 shot" or blown up in seconds (because the dev team has not addressed the major issues of extremely low TTK, or reevaluated player health over the years of super power creep damage output, or have yet to implement a healthy condi/cc system for competitive gameplay )... over and over and over.... This will certainly not be fun for that player, or anyone getting farmed... or anyone side already outnumbered on the map.
"No AC..." or other "no X siege" weekend... So when your side is outnumbered, and your team can't defend a structure properly (because, ya know, it's that gimmick weekend), chances are players will log out and not bother...
I'm not going to go on and on with other hypotheticals, but I'd much rather have the devs focus their efforts to work on profession, and other vital areas, instead of gimmicks that can easily backfire and create more negativity than needed. And I personally would love to have a weekend where I can use a working, and competitive, Dagger/Dagger and SB Soulbeast... Or a weekend where GS reaper wasn't a complete waste of time, and a complete immobile sack of health that is over dependent on gated shroud mechanics that only has working condi builds... Just saying.