There’s no confirmed voice cast for LEGO Skywalker Saga, but after Battlefront 2 used the TCW cast, it’d strike me as odd if this game didn’t. The Holiday Special used Matt Lanter
The difference is that was an original project. The Skywalker Saga is specifically based on movies where Anakin was played by someone who unambiguously isn’t Lanter and sounds nothing like him. I’m not saying it won’t be Lanter, I’m just saying it’s far from being a given.