It would be great tv if one day they ran a show with 500k and a million pound. Think they will do this at some stage.

Yes, judging by the good reaction the £500k shows mostly got amongst viewers and contestants, I think more £500k specials, and possibly £1 million specials, will be on the cards. I think it's likely that they'll wait until the £250k is won though, before they even think about doing any more specials... in fact, I'm quite surprised they even gave someone the opportunity of winning £500k before the £250k is won.

I do believe that in France (and possibly in other international versions), they upped the jackpot, once the previous one had been won.

Well now they might be thinking about. But I think the chances of anyway actually win 500k at christmas was slim.

However i'm sure we'll see a £1 million show in the future. Perhaps next christmas or on their 1000 show maybe. Perhaps they'll should offer 500k on thier 500 show.