I think it's a moot question.
We don't have a "sliding doors" machine to look at potential outcomes.
Based on what has occurred based on H&M's many public statements/interviews/books I think they would either be naive to think reconciliation would be easily attainable or be utterly disinterested in attaining it.
I don't think geography has a significant impact in any respect other than the fact H&M used their "re-location" to legitimise their attacks on his family and the UK after being told they can't make milk their royal status to gain (more) private wealth.
Let us again remember they wanted to remain Royal (status, payouts from the Duchy, Security etc) in every respect apart from doing any royal duties they couldn't monetise.
This "feud" is of their making. They raised the stakes at every possible opportunity, prompting possibly the most memorable line from the Palace ever in "recollections may vary".
I can't see how anything will change sadly.
How can anyone in the RF even have a single conversation with either of them without concern it's just fodder for their next money making grift given the utter absence of any self reflection on H's part in particular.