As is we have already 3 players in top-6 who arent effective in boring board and cycling games. Ovi, Vrana, Kuzy. All of them can have a good day but the most work is done by RWs and other centers (+Hags). AA as I understand is another guy with questionable level of battle quotient. So even if he's RFA I'd pay the same for JGP because he checks more checkboxes.
While thinking about center Ive come to terms with idea of trading Kuzy. Not that it could be done in reality, but a swap for more physical 2-way (not old) center would work better. Hopefully Kuzy just waits for playoffs to unleash his Conn Smythe form, but current centermen are all not ideal for current Ovi. Even if CMM gets good soon enough he looks more like a finesse guy than physical one (and he's small kinda). Eller lacks vision, Backstrom lacks speed. No way out.
PS: Petry is better than all that package easily.
PPS: Honestly, are there many centers who are not old, fast and have enough skill/vision to play with Ovi? Maybe that center is a pipedream and they should stick with what they have.