If your theme has the 2.0 update, it first starts with adding that latest version to your store in order to see what can be redone on the new theme compared to what you have before.
The pages you created should carry over normally if the content was added on the Shopify Text Editor and not via code, the rest of the homepage would need to be replicated to account for the new theme.
We'd be happy to have a look, assist & provide a quote for this to get done should you like.
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