The only way to return to CFW is by hardware downgrading and that will always be the case. Though you may not go online this also means the store, Netflix, Hulu or many other things if you get banned. I myself lost hundreds of dollars worth of PSN content as it was all deactivated and all the cash in my wallet was and still is unobtainable.
PS3 CECH-2501A [CFW] & CECH-3001 [OFW]/ PS2 SCPH-3901 & SCPH-7501/ PS Vita TV PCH-1000
MOD Custom Cobra 4.46 v7.00 w/ E3 Flasher [CFW] & Cobra ODE 4.53 [OFW]/ Mod HDD-OSD [Phat] & Modbo 4.0 [Slim] / FW 2.60 [TN-V]
HDD 1tb [CFW] & 640gb [OFW]/ HDD 640gb & OPL v0.92 w/ 1.5tb SMB /Memory 8gb & 32gb