H&R block software still indicates that not all of the Federal forms have been finalized. I wouldn't file your return until the forms are final. If one of the forms you use changes, might cause you to have to refile an amended return. Racing to file your return with forms that might change seems like a bad idea.
Will they even let you file if your return requires a form that hasn't been finalized?
I use TurboTax and one of my state forms hasn't been finalized yet and the website literally won't let me e file yet because of that.