Tomatoes in Winter

I have two Tomato Totem in the conservatory. The crop was not huge but it's been a bad season for toms. Anyway I have green toms on the plants and it is still flowering. The conservatory is not warm. What are the chances of them continuing for a while? I have cut back the watering. They are still really healthy looking even though it's a cold October here. We usually have fairly mild weather until January.

 

My tomato plant in my front room windowcil is still going strong and for the past few years I've left them to it to go on for as long as they want to. I guess as long as there not in the frost and extreams of the weather they'll go on as long as there happy

 

My cherry toms are still in greenhouse loads onplants still to turn red even took a bowl into kitchen where I get constant sun to see if they would ripen.