Oh, absolutely. The most familiar to software engineers is the AVR used in Arduino but there are so many 8 Bit micros out there (literally 10's of thousands different device) and new ones are coming out every month. So plenty of new development going on.
There are a couple of orders of magnitudes more Intel 8051 derivatives out there than there will ever be AVRs, and they still have yearly sales in the 100s of millions.
