All this changes were done to increase gameplay of map.

You can build only one Treasure Box, but it has infinite upgrades.

Increased base income and period of income reduced to 7 seconds.

Starcraft 2 version has improved income system.

Of course if you want to play versus other players you can leave current game. You can do it inside a current game, when it's finished. You don't need to leave a game and start a new one.

Starcraft 2 version has a regame feature.

It was removed due to uselessness of this feature.

Starcraft 2 version does not have a rounds.

But you can also freeze yourself in team(checkbox during vote time). It does not matter how players are joined in lobby.

When game started with 4 vs 4 mode, it creates 2 teams with minimum deviation of ranking points.

Starcraft 2 version has an autobalance system based on stats/points.

Each player can access to all player's data inside a game. All data and stats are stored in bank files.

Starcraft 2 version has a comprehensive stats/points and rank system.

Warcraft 3 mods new races