I'm not that deep in the topic but I believe people said that TCP/IP was in first tests, and I think it won't fully be removed than just some parts of code hidden and some removed, but if there are modding avaliable and there are TCP/IP code form previous tests It shouldn't be that hard to implement back with mod, the thing are blizzard can use their "powers" to turn off median project.
But if the median would be released as single player only there are no rules break, and IF someone else totally not connected with median will create tcp/ip mod that also supports median the worst thing could happen would be shutting off tcp/ip mod project that probably won't need much work and could be widely reproduced and upgraded by community if open source.
I just estimate things but blizzard are piece of sheep and probably can even shut down median even when it wouldn't be ofiicially desired to work with tcp/ip