200 megabits+, old modems still work. G.fast is headed over a gigabit on short loops 35b was introduced in 2014 as a simple, fast, low cost upgrade that could more than double speeds on existing VDSL lines. It uses 35 MHz of spectrum rather than the 17 MHz of most European VDSL builds but otherwise is nearly the same. Chipmakers - several now out of business - promised chips ready to deploy by 2016.
Simulations suggested 35b speeds could go up to 350 megabits over short distances. Adtran shared with me test results showing 200-250 megabits+. Alcatel/Nokia had similar results. Both were very confident a year ago. Until DT commented it would be 2018, that seemed reasonable to me.