I'll second that. To be honest the Sourceforge brand seems like more of a liability than an asset to me.
I don't know if I'm representative of the majority, but if I need to download some software and find that it's hosted on Sourceforge, my first few thoughts are typically: 1) Wait, SourceForge injected adware. I wonder if they still do? 2) This project is probably dead, because it's still on SourceForge.
I'm sure I can be trained out of that, but I'm surprised you guys reckon it's worth the effort, rather than just using a new name.