Though it is possible BMSN will reach 5$/share.... It is not likely. (at least in the term I intend to be invested in BMSN (TO BE HONEST)) 

But hey, many drugs are worth 2 billion.... 2 drugs, 2 billion each,2 billion A/S...

When both drugs clinical trials are reaching a close I do not see why it could not be 2$/share.

3 years? Who knows- That is uncharted, un-timelined territory, and I intend to be retired BECAUSE OF BMSN by then