Would the extra battlecruisers change the Orion, King George V, and Iron Duke battleship programs?
Short answerOnly slightly; the historical battleship classes still appear, with a possible fifth ship in some batches, because the German race continues to set battleship demand.
NotesThe historical battleship sequence remains because competition with Germany continues to define that requirement. The Orion class might gain a fifth member, and the King George V and Iron Duke batches could conceivably rise from four ships to five. Those are marginal changes rather than replacements for the extra trade-protection battlecruisers.