Does Microsoft have plan to release a new Kinnect for Xbox?

There has been nothing announced, and since they have stopped supporting the Kinect on Xbox One I doubt we will see another one. But ultimately you will just have to wait and see if Microsoft/Xbox announce anything, but I think the next thing we will see
will be more like VR than Kinect.

Hope not. If they going to do a new hardware device working with the Xbox Series X, hope it will an VR device, not a Kinect again.

The new kinect currently on the market is targeted at developers specifically. You might not have seen it out in the press as it's not a commercial product. I believe it has specific purposes in computer vision and machine learning and much more tied to
Microsoft Azure than the Xbox side of things. It's already out, but only available in certain parts of the world to specific people.

I doubt it, but I believe there is an adapter you could buy to user kinnect on your system.

I hope they give people the option as an accessory but it was a little niche and not something most wanted for xbox. I hope you're able to get one, if not the older console still works great depending on your needs.