Ensue IMMENSE marketing campaign so that people are actually aware it's a totally different console and not the Wii+ (and Nintendo are amazing at advertising, far better than the craptacular Sony). Soon enough the logo won't really matter, although it is a pretty poor choice for a NEW console.
I don't think so. Nintendo's been pretty shitty about letting consumers know about different things lately. Look at the confusion from the 3DS at launch, people not realizing it's a new system... Nintendo obviously didn't learn from that, keeping the Wii U name as it is for the brand recognition and again ignoring the obvious confusion that it'll cause many consumers.
I mean the original Wii's been out for over 5 years, and the "gamer" base has grown largely since then. For many consumers the current generation of consoles and handhelds is all they've seen, which is partially the issue when the 3DS came out. The concept of a new handheld that plays new games was foreign to people, and having a name directly based off of the old one with a minor change (when there were already known hardware revisions across the board) simply didn't do enough to get the concept of "NEW SHIT" into people's heads.
As posted...
(also numbers are easier to differentiate different products with than letters. Typically letters are used for model revisions)
This. People are used to things like "DS Lite" and "360 Slim" and "PSP Slim" and "PSP brite", something like "Wii U" doesn't give the same impression as going from "Playstation 2" to "Playstation 3".
Unless Nintendo does a fantastic job in their commercials of pointing out this is a new system, it's likely going to have the same sort of launch as the 3DS; one that confuses and disinterests the average consumer. Nintendo's decision to keep the name shows they don't think it's a problem though.
However, the people who are claiming the name/logo is going to affect their own purchase choice even though they're aware of what it is? Grasp at more straws, why don't you. If you won't want to buy the system, don't buy the system. You don't have to sniff out whatever reasons you can to try to justify it, it's your own damn choice.
EDIT: Capitalization and grammar.