IGN seems to think that Nintendo will change the name of the Wii U at their April 25th financial report, and they also seem to think that changing the name of the system is basically live or die for Nintendo. Take a look at part of the latest editorial:
If Nintendo is really serious about finding a new image in this new generation, the name 'Wii U' must go. And it needs to go now."
In my opinion, I don't really agree that a name change is going to make that much of a difference. If Nintendo wanted to change the name back in January (like rumors suggest) they should have done it then instead of waiting so long that people are now used to the name Wii U and have pretty much accepted the name. Most of the world knows by now that Nintendo's next home console is named the Wii U. So unless they have this awesome name that totally makes sense and doesn't have the Wii name in it at all, I think they should just leave it be and let the innovation and games speak for itself. I can however see the other side of it with the perception of a casuals only console, but Nintendo chose that path with the Wii and likely wants to keep it with Wii U but this time taking the hardcore gamer with them. The answers and more will all be coming at E3 regardless of what announcements are made at Nintendo's fiscal report in two days.