Current Turkish alphabet is mostly enough to convey sounds of Turkic languages (with few exceptions like Ng sound), Azeri alphabet 3 more letters for non Turkic sounds, I am Sure Kazakh people will find a way, there are already working examples.
Current turkish alphabet is bad at representing educated Istanbul turkish, and worse at anatolian dialects. For one, palatalisations, which are distinctive in many cases are either not represented or represented by a circumflex on a nearest vowel, but the diacritic also signals long vowels, even though they do not necessitate palatalisation, which is a quality of the consonants anyways.
