Journey and Flower developers are teasing their next game

Update:Thatgamecompany keeps posting new images so we'll continue to update this post.

Thatgamecompany, the developers of Flow, Flower and Journey, has already said that they've been working on a new game for quite some time, and it seems like the official reveal is incoming.

The studio just posted this message and images on Twitter:

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Not exactly much to go on, but it's always possible to speculate. We'd like to hear your theories and wishes in the comments below.