These Stop and Swap Cards can be used with the whole class. It's a fun way to practise the going to future. It's suitable for more advanced students, too. For them, it's simply a fun activity with the benefit of revising the structure, too.

Students mingle and whenever they encounter another student, they talk about their cards and then swap them and continue mingling. 

Another possibility is to give every group/pair one set of cards. 

There is vocabulary help on the back of the cards so that more challenged students will have the help they need to participate and actually talk in English while the faster students can talk freely.