Na, it's not in a worse position.
Honestly, anyone expecting the PS4 to have NOT been a jump was deluded. We knew it was coming, why would it suddenly change things when all that was revealed was stuff that already leaked and thus was known.
The PS4 graphics are good, and obviously a step up, but while it has more RAM, what it can do with more RAM decreases as the RAM increases.
We will be seeing "downports". The Wii U STILL provides a unique way of play that developers do actually love and are trying to fully utilise.
Come the end of the year, the Wii U will likely shine. If it doesn't, then Nintendo has a problem