I have been in contact a few times with DVLA about this, and as of Friday I was told that there was to be a meeting about the change in the directive sometime this month and that the outcome would be posted on their website. Looks like they have already had that meeting as my wife found the minutes hidden away Here
4. Amendment to the minimum Health Standard set out in the Second Directive on Driving Licences (91/439/EC).
4.1 These proposals were adopted by the EC on 25 August 2009. Member States have one year from this date to comply with this Directive.
4.2 The Panel acknowledged that under the new proposals consideration may be given to issuing/renewing Group 2 licences to drivers with insulin-treated diabetes. The Panel advocated the principle of independent medical assessment for Group 2 drivers treated with insulin. The Panel also recommended developing a network of nominated Consultant Diabetologists who have expressed an interest to carry out such assessments to a required standard and agreed criteria. A report from the driver’s Clinician should be made available to the independent specialist carrying out the assessments. LGV and PCV drivers would be subject to annual review.
Hopefully they will implement this sooner rather than later