FCC certification revealed that Buds Air 2 has a model number RMA2003 and its charging case has a 400mAh battery. It will be a successor to the Buds Air that features Dual Mic, Noise Cancellation, Support Touch Controls, R1 Headphone Chip, and Bluetooth 5.0. The Buds Q2 has a model number RMA2008 while its specifications are still unknown.
There’s no word from company about the launch of Buds Air 2 and Buds Q2. But, certifications hints that it may launch in the starting weeks of January 2021.

Realme Buds Air 2 and Buds Q2 nearing launch  bags IDMA certification - 55Realme Buds Air 2 and Buds Q2 nearing launch  bags IDMA certification - 78