Though I prefer the more straight forward spelling
Matilda, yes, I do see this one coming back. It's part of an overall trend to resurrect names from the past. I, for one, couldn't be happier.
Mathilda /
Matilda has several cute nn possibilities:
Mattie,
Millie,
Tillie,
Tilda.
The name is very evocative for me.
Mathilda /
Matilda reminds me first of the medieval ages and all those queens / ladies of England. (
Matilda Joan is my favorite "gloriously medieval" combination.) The second thing that pops to mind when I see / hear
Mathilda is the Victorian era. (
Matilda Jane?)