Future Tivo Release roadmap - buy a Roamio Pro now or wait?

I am thinking about buying a Roamio Pro to replace a Series 3 unit.



Does anyone have any information on the upcoming release schedule or technology change that would warrant waiting for the next hardware upgrade or is it fairly wise to upgrade now?



The Series 3 unit works but I find myself juggling conflicts a lot more.



Thanks in advance for your help.