Doubt it. It's likely to be close in size to the original refit, just more accurate to the filming model than that one was. IIRC only the Abramsverse ships were contracted to be oversized (and the Borg cube). If you're looking for bigger, you could always go with the Art Asylum, Diamond Select or Hot Wheels versions. They're sizable and reasonably priced.
Eaglemoss can absolutely do larger version of the various ships, it's that they can only do the are film ships on the larger scale, when they started this they intended on doing more specials of the various prime universe, but when they got permission to do the Abrams verse, it limited that. As they only plan two or three specials a year.
But yes the refit Enterprise A will be regular sized, i hope slightly larger then what we got, but who knows.