What to you think about Islene? (EYE-leen)
I like names with that EYE sounds but I hadn’t considered Eileen/Aileen as they feel pretty dated but I found this spelling variant that seems to give it an update. I looked it up and it’s definitely used, a character on Britannia (never seen it personally), an author by the name of Islene Runningwolf, etc.
What middle names would flow here:
Islene ____ Renee S-----
I think she would probably get “izleen” sometimes but that’s not an end all. I think it looks lovely written that way!
Middle name suggestions without knowing if you want a more common name like [name_f]Renee[/name_f] or a more unique one:
More Common:
Islene [name_f]Judith[/name_f] [name_f]Renee[/name_f] S____
Islene [name_u]Kimberly[/name_u] [name_f]Renee[/name_f] S____
Islene [name_f]Nora[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Olive[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Esther[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Grace[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Winifred[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Priscilla[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Dawn[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Michelle[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Kate[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Patricia[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Nicole[/name_f] [name_f]Renee[/name_f] S____
Less common:
Islene [name_u]Rue[/name_u] [name_f]Renee[/name_f] S____ (not sure how you feel about the double R)
Islene [name_f]Katia[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Gianna[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Flora[/name_f] [name_f]Renee[/name_f] S_____
Islene Bria/Brea [name_f]Renee[/name_f] S____
Islene [name_u]Cheyenne[/name_u] [name_f]Renee[/name_f] S____
Islene [name_u]Quinn[/name_u] [name_f]Renee[/name_f] S____
Islene [name_f]Yvonne[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Jacinda[/name_f] [name_f]Renee[/name_f] S____
Islene [name_u]Indigo[/name_u] [name_f]Renee[/name_f] S____
Islene [name_f]Annaliese[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Odessa[/name_f] [name_f]Renee[/name_f] S____
Islene [name_f]Zosia[/name_f] [name_f]Renee[/name_f] S_____
Islene [name_u]Lark[/name_u] [name_f]Renee[/name_f] S_____
Islene [name_u]Journey[/name_u] [name_f]Renee[/name_f] S____
[name_f]Hope[/name_f] this helps! 
I would pronounce it eyez-leen or something else with a z sound. I don’t mind the [name_f]Eileen[/name_f] pronunciation but it feels dated to me no matter how its spelled.
It has a great sound but I do think people would pronounce it wrong at first.
Islene [name_u]Meredith[/name_u] [name_f]Renee[/name_f]
Islene [name_f]Saskia[/name_f] [name_f]Renee[/name_f]
Islene [name_f]Mavis[/name_f] [name_f]Renee[/name_f]
Islene [name_f]Phoebe[/name_f] [name_f]Renee[/name_f]
Oh, that’s a much better way of spelling [name_f]Eileen[/name_f]! Very pretty. People would definitely get it wrong at times but perhaps with the popularity of [name_f]Isla[/name_f] that will be less of an issue…
hard no 
personally I think it’s a cringe “kryativ” way of spelling [name_f]Eileen[/name_f]
I think you might be better off with the original spellings. A name always sounds dated if it hasn’t been used for quite a while, but as soon as you have a little girl called [name_f]Eileen[/name_f] or [name_f]Aileen[/name_f], it will give it a whole new lease of life. [name_u]Promise[/name_u]! You don’t want your little girl in a position where she has to keep correcting people. It will become tedious and exhausting.
[name_f]My[/name_f] intuition was to pronounce it iz-leen at first, but I agree that this spelling is aesthetically pleasing! I do think she would have to correct most people at first on the pronunciation.