Yes! Well, it's not English! I'll go for Spanish.

It's an ungramatical Spanish phrase.

"qué será será" means "what will be", but it's just a word-for-word translation.

It's Spanich ~~~

Could be French or Spanish. What will be, will be

Neither. It's a word-for-word mistranslation by English speakers of the English "What will be will be".

Italian.

Spanish.