If a new relationship unfolds, que sera sera!
But: I am leaving my share of our assets direct to our kids. (With a proviso that he can live in the house for 8 years. The current equity is plenty to see him decently re-housed, kids are Uni aged and older, he is still earning and has his own savings).
Observation over many years tells me:
Men move on quickly
Widowed men are seen as a good catch
The new partner is often younger
He may have more kids
He will probably leave his estate to new wife
She will then, having outlived him by 10 or more years and lost touch with her step kids, leave it to her existing kids and / or her children with him, excluding his first family.
I have seen this so many times amongst friends and colleagues.
In one case the family home had been inherited from my friend’s maternal grandmother. Her father inherited it on the death of her mother, moved in another woman, and she now has to say ‘good morning’ to the children of step mother, now owners of her grandmother’s and then her mother’s house, as she passes on the way from her council house to the bus stop.
They don’t think, their heads get turned, they trust new wife to do right by their Dc. Not all men, but 5 people I know have watched their lovely Dads do this.