Still not sure about Rock's EC PPV status. I don't see why they would do something like that 4 weeks before WM. Rock in a chamber match is pointless due to lack of star power. If they want him wrestling between Rumble and WM, they can hype a big TV match for 3-4 weeks before WM with someone like Mysterio.
Rock talked about Lesnar/Taker as his future opponents a lot during WM weekend. Rock/Taker is a bigger match than Cena/Taker anyway, if they want to "save" something, which is stupid either way. They need to save this match. People don't realize that WM29 is a bigger show and PPV than WM30 because of the market the moment Dallas stadium wasn't an option. They need to go all out for this year more than next year. Rock against Lesnar/Taker at WM29/30 is definitely the way to book it.
BTW, I saw someone mentioning how this match feels bigger than WM28 or something. Not even close. The buzz, hype and anticipation for Rock/Cena WM28 was 3-4 levels above this Rumble match. It was one of the biggest events in the history of the industry. Nothing will likely come close to it for many years to come. Rock/Lesnar in New York with strong promotion can do it, but I don't expect this pitiful company to do it because they need Cena and HHH going over in scripted matches even if nobody cares about it.
Good scenario can be Rock going over at the Rumble, then Lesnar costing Rock the belt at EC. That way you gave the payoff of Rock as WWE champion AND can do Rock/Brock at WM29 without worrying about the title after the show. That of course is only if Rock is working EC. For the night after WM, if Rock plans to work in 2014, you can book Rock/Taker for the streak after Rock declares that he did everything besides challenging Taker at WM. It was important to keep Rock in the company in some way, which is why Rock did this:
If he's still in storyline after WM29, announcement of the match or at least a hint for the streak is the best way to do it. Maybe a Rock/Taker staredown. In the middle you can do Rock/Orton in the battle of the 3rd generation wrestlers at Summerslam or Rumble. But that's already based on the schedule.