Feature: 512x512 maps
Use: Enables the modding of grand strategy games of a caliber like Azeroth Wars. Enables large scale RPGs. Enables so much more
Feature: A working and easy-to-implement naval system
Use: A simple naval system allows mapmakers to create maps with more strategic depth without much hassle or flawed workarounds with pathing blockers or what not. The Frozen Throne had it and it was considered a clear improvement and a new dimension back then by both Blizzard and the Community, one of its most important features. Bring it back!
Feature: Server side banks
Use: Allows true in-game achievements for the Arcade, allows rewarding players and more competitive arcade play