Following these population figures of the constituent nations of the UK it can be seen that England quickly out paced the rest of the nations.
What if rather than England becoming a greater and greater majority, the other parts kept pace proportionally?
How could you manifest this? I do not know the historic reasons that growth was so concentrated in England. Why did Ireland begin to see growth until the famine but Scotland didn't? Was Scotland and Wales growing just as fast but experiencing mass emigration?
How would the nation develop with Ireland having 40 million people, Scotland 30 and Wales 15 (or whatever if someone could plot the rate of growth in excel and figure out what they would be I would appreciate it, not on a computer. Good starting points are probably 1603 and 1707).
The whole country would be much more populous than any European neighbours. How would this impact economic growth and colonisation?