New console announcements....maybe. But largely it seems that consoles sales tend to be not be deterred too much by competitor consoles these days. All 3 last gen consoles over 70 million.
The thing is you have to consider who wants a wii u. All I can think of is die hard Nintendo fans. Anyone who is a casual who enjoyed the wii is probably more inclined to play on a tablet/phone then cash out on a console. Are there really many die hard Nintendo fans left? The Wii would have deterred many new potential fans by offering the least of the 3 systems, meaning that gamers will most likely already have a 360/ps3, and therefore why upgrade to something which ash the "tiniest increase in something over the last" console?