That top line is interesting but I'm a bit frightened by what the high powered offense of Tampa might do back to them. Having Gagner taking draws for this line isn't going to do the kids any favors either. It's not like Horcoff was killing it on draws this year but he's in another class compared to Gagner in that respect.
The second line is also interesting. Big opportunity for Paajarvi to get something going with Hemsky out. Could definitely see Brule work his way back onto this line at the expense of Paajarvi though. To date Brule has shown much more consistent jump and tenacity than Paajarvi and I think that's a good fit with Penner and Cogs.
Third line just makes sense. As you said, keep the AHL linemates together. Jones looks like a decent fit. I think he can really play with anyone. He's not going to give you anything outstanding on offense but he brings it as a glue guy. Throw him out there with these guys and hope he inspires with his effort.