No.
If you want to be more effective against shielders, you should ahev goen polearm. Its one of the main reasons for chosing polearm weapons.
2h has a far superior Length to speed ration considering the grip positions and its easy enough to beat all but the best 1h with a small amount of footworking as 2h.
Adding a high teir, balanced 2h with Bonus against shields weapon would make most other 2h's with bonus against shields redundant.