There were only three champions in the past, now there are champions from Anatolia. It doesn't add quality to this league though. There has been only one champion in Germany for 10 years, in France the same team has dominated the league for years, in Spain only three teams are champions. As a result, the quality of the league doesn't change accordingly.
In the future, Konyaspor can be champions, as well as Antalyaspor. This doesn't improve the quality of the league. Increasing competition doesn't come back in terms of quality. There is a total decline in the teams. Failures in European cups are a very good example of this.
I agree with your all statement, even recently we have some good decline in quality of Turkish soccer but still they can achieve many good things which can help them for having some good increase in quality and competition in European Leagues. Foremost they need to bring some good fair transparency for all teams and strong environment which helps clubs for setting their youth academies and these can help them for having some good increase in quality.
Currently, they are not near in top 10 European Leagues because they have no enough quality which give them some good benefits, this all can happen with some strong Federation and clubs cooperation with good investments from both sides. Still, we can expect some good competition in Turkish league between top few teams because now they are looking for some good results for their clubs.
I don't think that different teams being the champions of a certain League is going to increase the quality of that League too much.
Yes, it will certainly increase the amount of revenue and also a little number of viewers but ultimately it will only full the certain fans who are interested in certain teams and not fans who generally love football and not the fans worldwide. Unless the quality of the players increases the quality of the league is not going to increase in my opinion.