is it time to start asking for it yet...
Of course! You can ask all you want...but it's NEVER gonna happen unless you do that (if you know what I mean). Just look at the Nexus One, it's not being supported and it has similar specs.
As already stated, the INC is never going to get ICS. Not for a phone that's nearing two years old. That's 100 years old in phone years.