I think what you said there is an idea that could plausibly happen except for the Triple threat match at TLC between Orton/HHH/Show. Big Show wins the strap from Orton at Survivor Series (or in a rematch at TLC), enraging Triple H to the point where The Game says that if you want something done right, you sometimes got to do it yourself. And so he challenges Big Show for the championship at the Royal Rumble, where we finally get Show/HHH. HHH wins the title (due to interference from Kane, presumably), Bryan wins the Rumble and that sets up Bryan/HHH for Wrestlemania. Triple H says that he's gonna wear the championship until someone new comes along that he feels is worthy of being the new face of the company. Then Bryan lays down the challenge for HHH at Wrestlemania, leading to HHH cutting a promo about how Bryan had better know what he's getting himself into because this is Wrestlemania, this is the grandest stage of them all, this is where the big boys play (oh wait, that was WCW's old motto), this is where you have the chance of a lifetime to become immortal (all the cliches you can think of when describing Wrestlemania being a spectacle lol.) He says that he's wrestled the best of the best for the WWE Title before and he's come closer than anyone to creating the biggest moment in WWE history on two separate occasions when he nearly ended the Undertaker's WM streak twice. He then caps it off by saying that when Wrestlemania XXX is over, he will have shown the world that Daniel Bryan is not an A Player and never was and that no one should ever seriously consider Bryan as a potential face of the company again.
I kind of rambled on a bit there, but I have the basics of a HHH promo inside my head. The end result, of course, is Bryan proving once again (just as he did with his victory over Cena at Summerslam) that he is indeed an A Player when he defeats The Game and becomes WWE Champion in the process as well.
This probably won't happen, because Kane will probably prevent Show from winning the title at Survivor Series, and I can't see us not getting Punk/Orton at some point (and I would be very much disappointed if that feud never took place.) But it's not implausible. Plus, it's be awesome to see Triple H win the championship one last time in a big angle.