E3 should have a better showcase of launch titles and intended titles by the end of the year.
It's not out of the realm of possibility to actually see the machines in usage along with more concrete details on system specs and capabilities.
I doubt we'll see a price point announced there, but we may get some initial hints at price goals.
Next month we have both E3 and TGS which are usually big focal points for new console hardware/software exposure.
Plus in August we have PAX Prime which will be another more expansive showing for the systems.
The Steam Console will be an abysmal failure since they have set the price point at $1000 starting.
I like the modular nature of it, but that is just too high of a price point for what is basically a PC/HTPC.
Nothing wrong with waiting to see how things pan out and letting prices drop and hardware become more stable.
As it stands looking at raw specs, apps, and system limitations/benefits I think the PS4 is a better purchase.
Only time will tell how it pans out moving closer to actual launch dates though.