I doubt they will ban stoves as the government admits they are needed by a significant number in rural areas, where emissions aren’t a problem. What I think will happen is it will become forbidden for a dwelling/boat to emit any smoke from a stove in designated (ie urban) areas.
As an aside I did read recently (I forget where) that a low level of arsenic particles are being detected in urban air. Not yet at levels to cause health issues. Probably due to burning treated wood - pallets, packing boxes, old fencing, furniture etc.
However following the principle of no arsenic is best, this will further the pressure on councils from canal side houses to put rules in place to control ’dirty’ boats.