It may very well have to do with the expiring license in 2018. Given how several different successful shows lately ("Black Mirror", "Stranger Things", etc.) are constantly described in the first sentence or two of their summaries as modern "Twilight Zone" type programs, coupled with the fact that CBS is launching original programming via its streaming service starting next year, I think there is more to it.What's the other motives then? They care so much about their fans and want to give us the best. I tend to agree with you but sorry this is wrong no matter which way the pie is sliced.
Prediction: given that CBS is going to anchor this new streaming service with original programming unavailable elsewhere, starting with their flagship property, Star Trek, I have a feeling that Twilight Zone will be next for a reboot via this new service. They recently remastered the entire Twilight Zone library in HD on Blu-ray with an extensive box set - it's really the second most valuable classic series IP in it's library. Particularly since there is no aging cast to worry about paying or recasting, and the anthology nature easily luring big name stars and directors, it's really a no brainer.
But for some folks it's just easier to think that Bob Iger wakes up every morning thinking of new ways to "terrorize" Disney fans. I could totally speculate several scenarios based on the above information that are pretty viable reasons for this to occur, but with people at such a religious pitch over this, it's not worth the time because no one will even consider anything other than that which reinforces their existing hatred.