imo, the 10 is such a niche market now, i doubt anything will happen.
also, i would assume that the reason they didnt/havent done a 97 in 10mm already is that the components maynot holdup to the 10. also, the cost of making the components for such a few individuals. if i were to do it, i would redesign from the ground up to eat 10. people love to modify guns to eat other chamberings w/o thinking, but sometimes you forget or dont know how those components as in frame/side was design and the limits of that design.
im sure youre waiting for the new bren 10, how many years now? im sure it will be out "next year".