Probably better to rely on the law than a statement by the UK CAA, that seems to change it's opinion more often than I change my socks and seems resolutely determined to avoid compliance with the law. Regulation 1178/2011 was amended by Regulation 290/2012 to add a new Article 10a, which states, inter alia:
2. Pilot training organisations holding JAR-compliant certificates issued or recognised by a Member State before this Regulation applies shall be deemed to hold a certificate issued in accordance with these regulations.
In such case the privileges of these organisations shall be limited to the privileges included in the approval issued by the Member State
Without prejudice to Article 2, pilot training organisations shall adapt their management system, training programmes, procedures and manuals to be compliant with Annex VII by 8 April 2014 at the latest.
However, given that it is now taking Approvals over 6 months to process even the most straightforward application, a more realistic target for getting everything sorted and the paperwork to Gatwick would be October 2013. Anyone who delays beyond that is likely to end up with no approval by the cut-off date.