Is there still local blackouts?
Not really. The teams that got booted from their RSNs last year were available on mlb.tv for about $20/month as you had to buy their local game package. That is all moving to ESPN this year.
That's not a very attractive model. If MLB local games are only available to people willing to pay $20/month, MLB loses all but their most dedicated fans.
mlb.tv blackouts, $20/month local app subscriptions (through ESPN/mlb.tv/standalone) are all set up to protect the RSN carriage fee money. Once they accept that gravy train is dead, they have to come up with some attractive way of showing the games to everyone or they are going to lose fans forever.
If 15 teams are without RSNs if Fan Duel dissolves, then they are getting close to critical mass in a hurry.