I agree that
Harry is not going to leave his children. Also even the recent spate of articles, which may or may not be credible, where "sources" assert Harry wants to come back to Britain, "sources" also note that Harry is happy in California and is not looking to relocate just spend more time in the UK.
I think a significant part of Harry not spending time in the UK is rooted in the security fight that Harry is spearheading. My take is that another aspect seems to be petty power plays from
both sides regarding lodging arrangements.