Great to find stuff like this online, in a few minutes, Scott Henderson explains how to use the old pentatonic shape and create new sounds.
https://youtube.com/watch?v=Sm_VSjadCiU
To summarize, here he uses the minor pentatonic shape starting from the root, 2nd and 5th of the key of the moment. In the example in B he uses B, C#, F# minor pentatonics. After that he shows some polyrhythms and rhythmic ideas.
I suggest for further reading:
Contemporary blues Soloing ! click here to purchase it in our shop.
Pentatonics (Inside Improvisation Series, Volume 2) by Jerry Begonzi
Pentatonic Scales for Jazz Improvisation (The Ramon Ricker Jazz Improvisation)