No recalc also means anyone, anywhere can participate in Battlegrounds anytime their playtime allows. Eliminate recalc and you eliminate recalc lag.

Start over with a new concept that fixes the underlying problems of GvG by not repeating them. Recalc, one map per world, no ability to add maps for AF and beyond. GvG was broken the day it was released, because of it's fundamental design. Works great for the big guilds, but for the rest of the server? Not so much. The maps have long been locked up by the bigger GvG guilds and allies, leaving the rest of the guilds on the server completely locked out of GvG even if they wanted to play. Having one map per age, per world also locks out the vast majority of guilds and players from ever gaining a toe hold to start fighting GvG. More players in GvG during that same short time span will just make the lag exponentially worse.

The lag/bugs everyone complains about all occur around reset, because everyone playing GvG plays GvG during the short span around reset. Reset time is the fundamental problem with GvG and why it can't simply be ported to, or opened up to mobile. I suspect the same issue that kept them from introducing an AF map using AF goods also prevented them from utilizing goods from any age on the kludged together AA map.

When AF was released, the GvG code prevented them from adding an AF map, so they created the AA map as a compromise, knowing no future age specific maps would be coming. When GvG was designed, FoE hadn't planned to take FoE beyond FE. Inno said it's only 5%, but either way, it's a problem that's finally being addressed with Battlegrounds.

Forge of empires battlegrounds strategy