It looks like the currently planned name for the next update of Solaris 10 will be Solaris 10 9/10, which gives us a good indication on when the new masters of Solaris plan to release the update. A release in September would make it the longest interval between updates since update 1, which was released around a year after the original Solaris 10 release. This longer release cycle is probably only for the better, one update per year is probably more than enough for most larger deployments.
Java version 1.6 will be added to this release and it will be the default JDK for new installations.
There have also been a second refresh of the ZFS code for this update, it's now something similar to ZFS in b132 but with deduplication disabled. This will bring features such as zpool split and zpool recover Solaris 10. Bug fixes and performance enhancements will of course also be included, such as 6869229, read more here about how this fix drastically enhanced OLTP performance for fishworks. Could we please have dynamic LUN expansion backported also?
These changes are in addition to the ones I've already mentioned my earlier posts:
First hints on Solaris 10 upate 9
Desktop updates for Solaris 10 update 9
Talks I have given
5 months ago