Square Enix has posted a new message up on Twitter. It says there will be an announcement in this week. Below is the message translated into English:
"Good morning. It's the start of a week. In Tokyo, rain has started. Please stick with us this week as well. We're readying a small surprise this week too. Look forward to it. Hashimoto."
What do you think that they are going to be announced? Final Fantasy VII remake?