Unrestricted rebuilds and a faster British battle line

What might Royal Navy First World War battleships look like in 1939 without rebuild restrictions?

Many could receive Warspite-style or more extensive reconstructions, with machinery changes potentially bringing them toward 28 knots.

The Italian and Japanese examples show how far old hulls could be transformed when machinery, armour, and hull form were extensively revised. Without reconstruction restrictions, the Royal Navy might rebuild both Queen Elizabeth and R-class ships much more comprehensively. New boilers and machinery could bring much of the battle line towards 28 knots by 1939. That speed would change fleet concentration and deployment even if the rebuilt ships retained important protection and hull limitations.