From ALARACT 06-2014, Change to Retention Control Points:
4. SOLDIERS NOT SERVING ON AN INDEFINITE REENLISTMENT, WHO REACH THEIR RCP DURING THEIR CURRENT ENLISTMENT AGREEMENT THROUGH LENGTH OF SERVICE WILL PERFORM ACTIVE SERVICE UNTIL THEIR CONTRACTED
EXPIRATION TERM OF SERVICE (ETS), UNLESS SEPARATED EARLIER UNDER APPLICABLE ADMINISTRATIVE, PHYSICAL DISABILITY, OR UNIFORM CODE OF MILITARY JUSTICE (UCMJ) SEPARATION PROVISIONS. SOLDIERS WHO ARE
REDUCED IN GRADE AFTER 31 JANUARY 2014 AND WHO EXCEED THEIR RCP AS THE RESULT OF A REDUCTION IN GRADE OR REMOVAL FROM A CENTRALIZED PROMOTION LIST WILL BE SEPARATED NOT EARLIER THAN 90 DAYS OR NO LATER
THAN 180 DAYS AFTER THE EFFECTIVE DATE OF THE REDUCTION IN GRADE OR REMOVAL FROM A CENTRALIZED PROMOTION LIST.
The Centralized Promotion list is for senior NCOs, not E4-E5.So even if you are flagged, you should still be able to serve until your contract ends unless you are chaptered for other reasons.