Sharp doesn't need to develop a single lens. That's the advantage with MFT. There are lots of lenses available from Olympus, Panasonic, Sigma etc. already.
Sharp isn't entirely new to cameras. They launched their first professional 8K camera in 2017, and it shoots 8K 60p! It's also a bit expensive at $77,000:
Sharp Announces 8C-B60A 8K Professional Camcorder
https://www.dpreview.com/news/5511724686/sharp-s-new-8k-camera-is-77-000
Panasonic also makes TVs and microwaves btw., and refrigerators and air-cons and, and...
Thre are btw. much more suppliers of MFT cameras than most people realise. In Addition to Olympus and Panasonic, Blackmagic and Sharp are also members of the consortium. In addition JCL, DJI, Z Cam and a few smaller manufacturers make cameras with MFT mount, some of them with full electronic compatibility.