Doubt Honda or Suzuki will, they don't seem to be doing much of anything with the 2 strokes, releasing a new model is probably out of the question. Never know what Yamaha will do.
There's a proposal being put to the AMA for a new Amateur class structure for next season as follows -
100-144cc 2 or 4 stroke(call it 125 if you want)
145-250cc 2 or 4 stroke
251-650cc 2 or 4 stroke
Add a 2-stroke only class
Apparently a similar structure got quite a bit of support last year, if it were to get through I'd assume the other manufacturers would start producing 144s instead of the 125s. But who knows really...
You can email your support for this class structure to the following addresses -
jay@halls-cycles.com &
mbonnell@hughes.net. They will be be bringing it to the AMA congress for submission in a couple of months time.