Is it correct to say the Name of Allah should have a fatha not a dagger alif?

Question
Fatha or Dagger alif on the letter lam of the Name of Allah

Assalaamualaikum wa Rahmatullahi wa Barakatuh

Please clarify the following for me regarding the Name of Allah taa'la:

I have noticed in some versions of The Quran, the Name of Allah has simply got a fatha written above the shaddah on the lam, however, in other versions, a dagger alif has been used.
Is it correct to say the Name of Allah should have a fatha not a dagger alif?
Is there suppose to be an elongation of the fatha on the lam?
Jazakallahu khayran.  Thank you.

Answer
Wa alaikum assalaam wa rahmatullahi wa barakaatuh,
The Glorious name of Allah does have a pronounced alif after the lam with the shaddah.  The dagger alif, which is part of the scholarly enhancements and not part of the 'Uthmani writing, has been added to some musaahif, but in others they didn't add it because of the vast familiarity with the glorious name of Allah and the knowledge that this alif exists in pronunciation.  Some scholars believe it would be better if it was written in (as a dagger alif) for clarity. 
So yes, there is a pronounced alif after the laam. 
Wa iyyakum.   You are most welcome.