Representative Dave Camp (R-MI) has just introduced into the House Ways and Means Committee which he happens to chair the Tax Reform Act of 2014. You can read it here. Given that the Republicans only control one house of Congress and do not control the White House, the bill has little likelihood of passing. However, it gives notice as to where the party leadership may want to take tax policy.
After I've done my skim-through of the roughly 1000 pages, I'll try to comment here if it's worthy of any such comment.