It would seem that SFA chief executive has managed to get the rules changed to allow players who were born in one part of the UK but attended school for at least five years in another British country to represent his "new" nation. The example used is Andy Driver of Hearts, who went to school in Scotland but has played for England's under-21s. The rule changes means he can now be called up for the Scotland squad.
Dorman was born in England but grew up in Wales and considers himself Welsh. The rule change means he could now represent them, and if he recaptures his form from last season there's surely a great chance of him playing at the Millennium Stadium in the near future.