Web Bluetooth

I always felt that Chrome Packaged Apps were quite useful, with it being
able to achieve things that the Chrome browser can not. Especially being
able to communicate with bluetooth devices.

With Google stepping away from Chrome Packaged Apps, will the ability to
communicate with heavy data transferring bluetooth devices be implemented
as well?

Right now I am coding a Chrome Packaged App that connected with a device
that sends huge amounts of data using Bluetooth 2.1. Will that still be
possible when transferring to a web app? To me, this ability to connect
with these kinds of bluetooth devices are extremely useful.

I have seen the experimental web-bluetooth api, but right now it only
supports BLE or Bluetooth 4.0+. I was just wondering if there will be
solution to bluetooth 2.1 devices in the near future or if I should find a
different approach.

Thanks,
Evan Shang