this is the last version of the NAT manual.
http://www2010.icao.int/EURNAT/EUR%2...7_V-2016-1.pdf
In effect it seems there is no change in the contingency procedures chapter regarding the RLAT. probably because it s considered safer to stay 15 NM out of the track, where the possibility that another aircraft in an adiacent track is experiencing a similar emergency, than flying closer to the own track where there may be more traffic and more risk of proximity.