when will the wwe app be on xbox one

In regards to your question, there isnt a WWE app on xbox one. It was already stated by WWE at the network reveal that it would come in the summer.

I heard this summer. I think they stated this on both Gamespot and Gameinformer.

I think the problems with the Xbox 360 app are due to the idiotic way they decided to implement WWE Network on Xbox 360. Yesterday morning I went on the XBL App marketplace to look for the WWE Network app, and it wasn't there. What I suspected turned out
to be the case:

They implemented WWE Network as an update patch for the existing WWE app. This causes a problem that I don't think WWE has even considered yet, (based on reports from lordsofpain.net anyway.) See, the pre-existing WWE app on Xbox 360 was exclusively for
viewing WWE PPVs you would pay to watch ala WWE.com PPV webcasts. Therefore an account for viewing those old format PPVs and an account for WWE Network are not quite the same thing. I believe someone *** up and did not configure the "updated" version of the
WWE app to check account details as they pertain to WWE Network, rather than the previous account credentials needed for viewing the old format PPVs.

They could have avoided this whole mess by just releasing an entirely separate WWE Network app. I'm baffled that these morons haven't figured this out yet.

I know that you are upset that the WWE app hasn't been fixed by MS yet. You need to remember that MS did not create this app, they do not own the app; just like when a game is made, it's created and owned by the developers/publishers. In this case, it's
WWE. For whatever reason WWE's app isn't working on Xbox and MS is trying to fix an issue caused by another company's service. Be patient while they work to make things right for you.

Here is a link that gives you some trouble shooting tips concerning the WWE app.

support.xbox.com/.../wwe-help

But as stated above, WWE is overloaded at this point and logging in/signing up may be extremely slow or impossible at this point.