A lot of what people think of as just being bone includes a lot of connective tissue, and small muscles.
Look at an x ray of a hand. https://radiopaedia.org/articles/hand-radiograph-an-approach
All of that which is not bone can expand, and probably will if you keep rock climbing. I used to take medium gloves as a teenager, grown to my full height, and after close to 20 years of judo on and off there's no way I'm getting my hands in anything smaller than an XL, and even that's a squeeze.
The same is true of your wrist, there's a bunch of tendons and small muscles that run down the palm side of your wrist and they can get bigger and also your back. The shoulder blades might be bone but they just kind of float there and expand apart as you get stronger and bigger.
What you can't do, without surgery, is get taller, and your fingers can't get longer, but yeah, everything you're talking about could get thicker with enough training. There are genetic limits on how big you can get, but as someone relatively untrained you'll be very far from them