VIE by LS was still on sale for summer up until a few days ago. However I noted the winter schedule varied a bit. As LAX_LHR says a shame because they took a risk on a route which was lacking when no one else would.
To be honest I would prefer OS provided they stick with it. Went to VIE with them in April from LHR. I was not looking forward to going through LHR but T2 was a breeze both ways as was VIE. T2 to me seems functional and pleasant to use. I hope MAN gets somewhere near to what T2 has.
Back to LS as of today they are a net 10 flights up on last year. Things are however constantly changing as always