Check out:

http://euler.atmos.colostate.edu/~vigh/guidance/

The "Atlantic Basin" "Early-cycle intensity guidance" ( frame 2 right now ), shows a few models think it could get to CAT 4, and one model says CAT 5 ( about 150 knots/ 172mph ) about 72 hours (3 days) from "now" ( now being 8pm EST/0000 UTC ). Puts it about 8pm on Saturday, which according to the official track, puts it east of the Bahamas. The chart has fluctuated, because earlier today, it said 36 hours out.