I bet that Dreams will go on for many years!

Yes, it has been confirmed only untill the end of september, but also last year it was confirmed only till the end of september and it is still on!
Of course there will be changes, and maybe it will be only on certain days, as they are doing with the spring cavalcade at the moment.
The Ibis hotel in Val d'Europe doesn't have the free shuttle, you have to take the Rer and it costs 1,80 Euro each way.
But there is the Hipark near there that has the free shuttle, it's cheap and I have read very good reviews about it. There is also the Sejour & Affaires Rive Gauche that is pretty cheap.