I don't think there will be that much of a dip for Ramiro. The listeners for Jam'n are younger than Hot 96.9's, so the listeners who have aged out of Jam'ns target will likely move over to Hot 96.9, but Jam'ns younger listeners will probably stay with Jam'n 94.5. Listeners to Matty and even Karson and Kennedy may be more likely to migrate over to Hot 96.9.
What's going to be interesting to see play out is with the number of stations under the broad "CHR" umbrella in Boston--Jam'n 94.5, Hot 96.9, 103.3 Amp, Mix 104.1, and Kiss 108--if one of these stations will be squeezed out.
Jacko