Here's a copy and paste from Kyle Bentley who is part of Team RCH. They are doing a q and a on vital with him right now. Maybe all hope has not been lost for a new RM250
No doubt right now I would take an RM250. Down at the race shop we've built three of them over the last year (Roczen, Bogle and HART) and currently one is in transit from Florida as RC4 wants his rebuilt for some special projects he has going on coming up later this year. Chris Wheeler from Suzuki is loving us right now because it's two-stroke mania going on. I think it's coming full circle and hope Suzuki jumps back on board and sees the overwhelming demand for two-strokes again. Every amateur race the largest classes are the two-stroke schoolboy classes. I know Suzuki R&D has built an aluminum frame prototype (they did a beta test survey at Loretta Lynn's last year) and also an aluminum-framed 250 (Jake Weimer recently rode on the Suzuki test track in California a few weeks ago). Will keep our fingers crossed.