If you haven't yet seen this post...you need to check it out.
It's for the 5 speed guys that are wanting to keep the five speed alive! Who wouldn't? Great gear ratios, no crazy expensive conversion costs (these aren't cheap like per-say the LGT swap but it's not an STI swap money!) and there will be options!
Both a Dogbox and a Syncromesh options will be available, I think this can really help push the WRX transmission in the right direction without all the hassles of some other companies.
On top of this, we're looking into creating a case stabilizer for the public to further help with holding the trans together and giving the public another option. We've used a protoype version in a rally car and so far it's holding the torque, however, the gears would be the next step to further help from having input shaft and main shaft failures.
Someone had designed something similar to the stabilizers for the 5 speed and sold them but for some reason they either didn't sell well or there were issues in getting some parts because I've only seen a few out there.