All indications are that they will PERMANENTLY CLOSE that WELLHEAD.
The Relief wells were planned to (1) siphon off some of the oil/gas and PRESSURE, (2) to do a BOTTOM KILL.
The plan is to siphon the oil/gas off to the surface, after the Integrity/Pressure tests are done, but only until they can do the BOTTOM KILL. Once they do the BOTTOM KILL, it will either be closed, or we will find out how screwed we are.
If it works, then they will remove the WHOLE BOP on top of BOP assembly, right down to the ocean floor, bring it all topside, and tear it apart to see why the SHEAR RAM didn't close.
Now, they CAN drill another WELL to get to the same Reservoir. Except for that 'moratorium' Obama dictated.
IIRC, from all the sources I have read through, once a WELL experiences a BLOWOUT, then BY LAW that WELL must be CLOSED OFF and CANNOT be REUSED.
BOP, SHA, BOP, DIDDY, DIDDY, DUM, DIDDY, DOO...