No, not really, when that system has had no big releases for it...people need to stop comparing the Wii U and Vita situations. I feel like they're almost equated because people intentionally ignore the releases for the system and look purely at numbers. There's no other way they're comparable
People are looking at the numbers
and the release schedule, and still coming to the conclusion that a grand revival is not happening.
The sticking point of course is, what exactly would be considered a grand revival. The system is currently selling ~9K a week in the US; what do you expect that number to rebound to?
At current rate, by the time Pikmin 3 comes out the system will have been on the market for 9 months and would have only sold 1.25M (assuming sales don't dip in the Summer months, which they likely will.)
Splinter Cell: Blacklist that comes out in the same month, is being looked upon as a barometer by third parties, and given that installed base growth, or lack thereof, it will be lucky to sell much more than the 20K that Injustice did.
EA has already bailed, if projects like Injustice and Blacklist continue to tank then Warner and Ubisoft will eventually too, at least with their "core" properties.