Slavery with a failed, or no ARW

I am curious how the issue of slavery would be dealt with if the revolutionary war either failed, or did not occur. While some stress that the UK OTL gave up slavery if American remained a major colonial holding this would mean that large areas of the colonial economy depends on such a practice.
 
I've given my thoughts on this before -- suffice to say, I tend to think that the success of the American Revolution was crucial the rise of abolitionism in both Britain and America, and by extension to the banning of the slave trade and slavery itself.
 
I agree with John 100%. The impetus for abolition in America was tied to the Revolutionary afterglow.
 
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