The ibanez TRS series can be retrofit with OFR or any licensed versions: its routing is just nice but sometimes, just sometimes, you might need to shave off a few mm to fit it in nice. Usually needs routing to fit the Ibanez Edge series.
The Edge/Lo Pro can be retrofit with OFR or any licensed versions because its route is larger than normal.
The Edge Pro, Edge Pro II and Edge III (there was a topic on this, with pics) can be retrofit with OFR and any licensed versions.
In a nutshell, yes. But measure, measure and measure again. I reckon you wanna replace your TRS unit or something?