Its highly unlikely there will be any future exemptions for Forces training etc (as this is not now down to the CAA but EASA)
Previously under Section L, the CAA only had to satisfy itself that UK forces training met a required standard. Now, EASA has to consider every country involved and differing standards obviously exist making it a nightmare to dealk with!
Thats not to say that differing standards existed prior to the introduction of Part 66 Licences across EASA States!