Number one son is Marine grunt with A/1/5 in Ramadi as we write. He says that the Marines are offering a $20K bonus for Marine grunt re-enlistments when the Marines are within a certain time period before the Marines' EAS. There are no threats to activate a Marine going into IRR after active duty. This sort of contention sounds silly to me since the military can always do a stop-loss anyway.
Make sure he re-ups while in the sand box. Tax free puts more in his pocket. Hate to get it from Uncle Sam only to hand it back in taxes.