Current published answer
The official FAQ says the game supports online co-op but does not offer local or split-screen multiplayer at this time.
Plan the right kind of session
Players sharing a room should still plan for separate online-capable setups rather than expecting two controllers on one display to create a local party.
Check the current build
Local-play support is a feature that can change. Look at the current settings and official patch information before buying hardware for a specific setup.