Broadly his current (since at least 2014) vision is:
A) Further integration of the Eurozone states
B) Opt-outs for further political integration for non-Eurozone states, such as the UK, who don't want to further integrate politically
C) Focus on completing the single market (e.g. services and energy markets aren't fully integrated)
That is to say, unlike S&D/EPP he is comfortable with the idea that the non-Eurozone nations aren't really interested in the political union side of things.
I think it's important to point out that integration doesn't necessarily mean centralisation (e.g. the USA and its states or the UK and Scotland/Northern Ireland). Though for the Eurozone it would, indeed, require a fair amount of centralisation, especially fiscally.
What he dislikes is the "pick-and-mix" EU that we currently have, where everyone is supposedly 'committed' to the same goal and yet everyone has a host of opt-ins and opt-outs.
This is what Verhofstadt said before Cameron's re-negotiation.
George Osborne is right to suggest that the EU should continue to focus on better regulation. In recent years, in part thanks to efforts by the UK, there is a growing acknowledgement by the European Commission that “less is more”
Are these the words of someone closed to the UK as a participator in the EU or obsessed with the EU control over things?