doubt someone will buy them out for the current development.
Now if they start to see 'success' with their other product lines, I could see a buy out happening, but they are still years away from getting that kind of 'confirmation' that the developments 'really' do work.
My plan was to hold onto some shares, take gains on the rest, and only hold them IF i could get decent covered call 'returns' on a frequent basis. Otherwise, sell them all and try something else while I waited and watched.