To everyone talking about blah, I got your answer here. I asked him to post something here, but he forgot his password to both his e-mail and his TCF account, so he couldn't directly make a statement here. So this is what he had to say when I asked him about the development of Avalon:
Do not worry about the tModLoader port: That one is being worked on. Blah is talking about Exxo Avalon. The tModLoader port is led by Bullseye who is still very much active.
Apologies for the misunderstanding, but stay tuned for more news on Avalon's tMod version! Bullseye has a lot of great ideas planned that we're all excited to show you!