[qwerty123]

I highly doubt this. It has only happened in very rare and unusual circumstances where taking the domestic bulletin made editorial and practical sense. As I've said before, the merger is not going so deep as to affect network bulletins - arguably they'll be more independent from the news channels than they've been since 2006.

Wait until the headlines about presenters working for only a brief amount onscreen each day start. Totally unjustified because of how much work happens when not live on air but it could well spook the BBC into making more cuts.

If anyone had actually bothered to check iPlayer they would see that although the lunchtime bulletin is now separate to the News Channel at weekends the presenter used goes on to present the following shift on the channel so it's not as though anyone is actually on air for a few minutes.
The bigger question is probably as to whether the savings being made are actually worth it considering only one presenter shift has been lost at the expense of 15 hours of separate content.