Liberate Terraria! (OGA needs your help)
Edit: It's been confirmed that this is definitely not happening.
If anyone can help out with this, I'd appreciate it. Given the reaction to the recent halt on Terraria development, I suspect it might be possible to gather a "liberation fund" to pay the Terraria devs to open the source and content of Terraria. In order for this to be even remotely possible, we need the terraria devs to at least be aware of the idea.