That t-shirt is nice but it looks like his others. Basically, he tried to get us hyped for what WWEShop thinks is a worthy update of making his logo look slightly nicer and putting a new catchphrase on the back of it (but putting stuff on the back of the t-shirts is another story).
IMO, his theme song is fine. I really like it now, just like Ambrose's. They're different enough for me to know who's coming out and quite catchy. I'd rather they work on new themes for Reigns, Cesaro and Damien Mizdow (for when he eventually becomes Sandow again).