I'm not sure what to say that will give you hope.

It is possible that in 2 yrs, you'll contact him and he will be grateful that you did. It is possible he is struggling. The rule of no contact for 2 yrs goes both ways. He is bound by it as well.

eta - and as someone else pointed out, any deliberate contact during that 2 yrs restarts the clock. He knows that too, so it might help give him the resolve to maintain radio silence regardless of what he is feeling; especially if he is hoping for a relationship after the 2 yrs.