Sony Xperia Z1 Ultra?

Seeing that the Z Ultra is just an over sized Xperia Z with a downgraded camera and better internals, would it be right to expect an updated Z Ultra later this year ( the Google Play Edition Z Ultra was just released so it would be fair to say that Sony would wait a while to release its successor so soon) but with rumors of a so-called Z2 being announced I'm not really sure about Sony's future phablet plans.