Go to giggle at that report there from the lincolshire paper . they say 52 Squadron , cant even get the squadron number correct.
Im sure this news has been on PPrune for last few months about replacement for the Nimrod R1, the Rivet Joint is on another thread so its not new news just to confirm that one.
and I not sure if this is 100% fully correct , the Nimrod R1 has more airframe hours than the MR2 and would make sense to be looking for replacement quicker than the MR2 that may be the reason.