I agree, we won't see what's happening with BR and HDDVD for another 2-3 years TBH.
The good thing is that the PS3 potentially is strong enough to last at least 7 years and could be around as an incentive for buyers (as long as BR becomes the no.1 choice).
Prediction (June 12th 2017)
Permanent pricedrop for both PS4 Slim and PS4 Pro in October.
PS4 Slim $249 (October 2017)
PS4 Pro $349 (October 2017)