I think I would ease off on it for now, but keep the potty available and try him on it first thing in the morning or before bath and see if it he has any success, no pressure, just to keep the idea there.
I started with my son in summer at 2.5 and he just didn't get it. A few months later, nothing. Age 3.3, terrible experience. Age 3.5, cracked it in a few days. In hindsight he had never mentioned having been for a wee, stemmed to have no idea he was going and just wasn't ready and I wish I hadn't pushed him the two middle times. He also couldn't manage his clothes well by himself. I went by his age rather than if the signs were there, which was silly.
My dd is 2.5 and regularly tells me what she's done, can change her own nappy, sometimes takes herself for wees first thing. I am waiting for the holidays when I don't have school runs to buy her some pants, but she is getting there herself and only needs a nudge.