The V-6T has its own overtaking multiplier built in -- the mega-CURSE -- so both DRS and disinte-Pirellis could be/should be made redundant. Even at Monaco, there won't be enough enough petrol on board simply to reach the finish (at anything resembling race pace) without significant contribution from the ERS. 2014's mega-CURSE theoretically can produce 10x the per-lap output the 2013 CURSE, but that is a gargantuan increase from a device that has yet to show stellar reliability. Cooling always has been the CURSE's Achilles' heel, principally because aerodynamicists are so reluctant to relinquish airflow to cool the electric motor when it could be being used to improve downforce. So I shouldn't expect to see any team running ERS to the full potential as allowed in the TR for some time ...if ever.
Consequently, the teams with the best ERS should dominate. Unless, of course, the teams en masse elect to forgo the 2014 formula mega-CURSE and default instead to incremental upgrades to the 2013 formula CURSE. In which case 2014 will devolve into a fuel economy contest with drivers once again "lapping to the Delta," except that ∆elta will be determined by fuel economy, not tyre life.
In any case, there is no reason not to return to proper spec racing tyres for 2014.