The short answer is no, it is not possible, I'm afraid.
The only way to keep your current data if you are adding new hardware to your current deployment - as an EP in your case.
Then the current AiO would became the console containing all your previous config, log sources and all the data.
If that not what you want, then my best advice would be to:
Keep the old AiO (you can migrate it to a separate VM for example) till the data is relevant/needed.
And re-implement/migrate the relevant configurations/log sources to the new deployment.
IBM Security Expert Lab Services would help you about planning and implementing such extension and/or 'migration' - if needed.
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Laszlo Zrubecz
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