According to recently rumors from SAR, Sony will soon announce a new high end full frame camera in CES 2016, probably on January 5th, 2016. a99II will replace current Sony a99, a very good news for Sony a-mount users.
About Sony a6000 successor: According to the rumors, a6000 successor (a7000) could be announced in next several weeks or months, and shipping in early 2016.
via: SAR
Read More: Sony Alpha Rumors