I would caution against getting your hopes up.

A milder variant might be nice, and on the longer term help resolve the pandemic.

On the short term, however, increased infectiousness may easily outweigh this. It is not hard to see the number of hospitalizations and deaths increasing, simply because of the larger total number of cases. Humanity will then generally try to mitigate this by stricter measures, and altogether we might end up with a rather nasty winter... again.