Personally I am more worried about this:

"The new airline would take over THAI's domestic operation, which has been suffering losses, using a more cost-effective and less complicated operating model.

The new carrier will be positioned between the conventional premium airline and the low-cost carrier.

With the creation of the new airline, THAI would become a fully-fledged international carrier."

So this could result in the following:
- different home base airport, e.g. Don Muang instead of BKK, just to cut back some costs
- no more or just some reduced miles for flying domestic
- no premium service for *G members for flying domestic

Lets see how this turns out.