A good question. My somewhat simplistic thinking tells me that the eastward shift in the precipitation in the tropical Pacific would mean some eastward shift in the strongest portion of the ascending branch of the Hadley cell, and also an increase in the strengh of that branch due to the anomalously warm sea surface temperatures (SSTs) with their sensible and latent heating imparted to the atmosphere. That eastward displacement of maximum anomalous heating, and the excess heating itself across the eastern and central Pacific, would be expected to amplfy the Hadley circulation and also cause the north Pacific jet stream to be both stronger and extend farther eastward, as we know does occur during El Nino. This amplifcation and eastward elongation of the jet would be most apparent in the northern hemisphere during Nov - April (their winter) and in southern hemisphere during May - Oct (their winter), because the Hadley circulation is best defined when there is the largest equator vs subtropical atmospheric temperature difference. The largest differences occur during the winter season. An implication of the change during El Nino is that the subtropics would be drier than usual (e.g., northern Hawaii during winter), due to the stronger descending branch.  As for the changes to the Ferrel cells, I know less and do not have an answer for you.