I still don't see the problem. Assuming you're keeping the wire sizes the same, an American electrician working in the U.S.A. will continue to call it #14 and that's all he needs to know.
If he has to compare sizes with some imported equipment, then he can look at the cable reel and see that it's 2.08 sq. mm.
I don't think dropping the AWG designations would be very popular. We've experienced a similar situation in Britain where items were first dual-marked -- e.g. 1 lb (454g) --and then the English units were dropped altogether leaving just metric. Then the metric pack sizes were adjusted to make the figures more round, e.g. 450g, or 425g.
Most people here were happy to accept dual-marking, but have been most unhappy at the forced withdrawal of English units.
