If it's potbound, I'd move it to a larger pot - at least and inch all around extra room. I've had my EA 'Chelsea' for at least a couple years and it has yet to bloom for me. I'm always more concerned about it looking healthy and growing than how soon it will flower. I never worry about keeping mine as potbound as possible, and even though it seems to be the general consensus that a potbound Hoya will bloom sooner than one not, I don't find that to be necessarily true. Sometimes, just giving a Hoya a new pot, fresh soil and some extra "leg room" is all it takes to get it to bloom!

Denise in Omaha

I agree with Denise that the "hoyas need to be potbound to bloom" mantra has always sounded suspicious to me. They need to be a certain AGE to bloom, perhaps - that sounds more plausible to me - and guess what, by the time they are that certain age, they may accidentally be potbound. It also makes sense that people recommend to keep them potbound, because then you are less likely to overwater and kill the roots.

So, repot away, I would say - but see how tight or not the roots are. Make the pot an inch larger at most, and maybe the same or even smaller (unlikely) if the roots are small. But people do tend to keep them potbound. A couple very good hoya growers I know with very large collections said they NEVER use pots larger than 6". So, that's your bit of food for thought, too. Perhaps consider dividing your 8" pot. But this part is subjective - don't do this if you like larger fuller pots.