It's not Maria's future that's a menace, it's the present. It is moving painfully slow to the north and dumping rain over the same areas. One of those areas is Puerto Rico.
For our viewers with friends and family there, here is a great link to the NWS Puerto Rico site that keeps you up to date with the rain, and watches and warnings impacting the island.
NWS Puerto Rico Advisories Page
Meanwhile, once Maria gets going, it will ultimately head north threatening Bermuda before moving into the Hurricane Graveyard... the cold waters of the Northern Atlantic. Models do not hint at any further intensification. Hopefully this will only be a worry for the shipping lanes.