Omicron BA.1 numbers in South West have never reached the same levels as in other regions (e.g. London, NW, NE) so the SW susceptible pool must be higher than elsewhere. I suspect Scotland is in a similar position. As a result, both SW and Scotland might see a higher BA.2 peak (especially as compared to the BA.1 high watermark).
Scotland numbers slightly lower than England but not a huge difference.