My answer is no, SH3 is here for the long haul. My reason for saying this is simple. If they make SH4 the same as SH3 with regards to file structure and accessibilty, then I hope we will be able to share SH4 files and merge them into Sh3. So in fact SH4 will make SH3 live longer !
That's my theory and I'm sticking to it !
