Have you made any decisions on what you're going to do yet?
Like you I had a lapband in 2010, I am having revision surgery to a bypass in January....I am heavier now than I was before I even got my band. 😬 I had a consultation with my surgeon - he said he doesn't recommend sleeve revisions from a lapband, so that is why we went with the bypass. The lapband and bypass work in different ways, so you won't necessarily be in the same boat 10 years down the line....but I absolutely understand your worries.
As for recommendations, I'm having mine done with Healthier Weight. The surgeon (Rishi Singhal) who specializes in revision surgery is based in Birmingham so I'm having to travel up there from London but I'm happy with his experience and level of expertise in revision surgery. I found out about him after seeing him on the news having done a very large ladies bypass - BBC Midlands Today interview Rishi Singhal about weight loss surgery and NHS funding - YouTube
Good luck with whatever you decide!