Stacey, it looks like too much old wood there. My bushes are prob 5 years old and every spring......April I guess.....I remove all old wood, the grey wood. I try to keep as much coloured wood....pink/red as possible.....and prune/spur all shoots on this wood. I think blueberries fruit on last year's wood so I prune to encourage this. Too much old wood tires the bush and is unproductive anyway. I think.
I would not repot as such. Is your compost saturated though? It's difficult to properly see your bush but it looks like it is. And the compost level is low. Blueberries are shallow rooting. I would be inclined to lift it out of its pot and add ericaceous compost to the bottom. Also lightly scrape with fingers the top compost and apply fresh. Water well.
My blueberries are looking pretty good.....plenty of fruit, compact and green. I apply Epsom salts in early spring as a tonic and a little fish blood and bone. A light mulch of ericaceous compost too.
My blueberries are in pots of ericaceous John innes and plunged in the ground. They are slightly higher than soil level but whole local area ....pots and around....is mulched with ericaceous compost. I ensure pots are reasonably moist. (use tap water but shouldn't really but seem to get away with it.)
Hope this helps.
If vine weevils are a problem you can easily tell.....do the roots look eaten and when you remove some of the soil can you see grubs?