What could have caused this? well I don't wanna go further on that but instead I recommend you to visit this post my brother did regarding that issue (Top Five reason why American Idol is losing the ratings).
Well, As the title goes, I prefer listing down the things which, on my opinion that may make American Idol soar in ratings rank again or at least somehow improve it.
•Mentors - Well, I guess the strategy of Idol for this year was to put the biggest star on the panel instead having them as guest mentors, which was for sure a major fail. I just notice, the mentoring system of Idol had become dull lately unlike previous season on which they get to show variety on that. Perhaps most of AI's budget was spent on giving viewers an interesting panel which actually turned out an eye-sore to us. If they would again do such, there's a higher chance people will look up to watching the show more often because there's always new each week.
•Performance Upgrade - I think, season 12 somehow had some of the best vocals the show ever had, but something ain't right when it come to their performances. Yeah, vocally it was mostly great but, the actual or the whole performance itself was kinda boring to watch, and so, I thought if they would focus on putting more creativity on that certain factor, there will be no boring and forgettable numbers anymore. I know it's a singing competition which must focus on the singing, but in a world where there is Lady Gaga, Katy Perry, Rihanna, Pink and so much more artists which gives audiences overflowing does of entertainment, I think Idol must also cope up on that.Enough with the smoke machine, spot light , stairs and splitting monitors on the background and come up with something new and current.
•Themes- As you all know, unlike other shows which gives contestants unlimited choices of songs to sing American Idol has this random theme each week, which I think was the best way to show their contestant's versatility. However, it is quite noticeable that Idol was running out of themes to use, most especially for this recent season which showcases themes that are too broad. Actually this goes with the mentors for whoever they may be, their songs will be on finalist's choices. Hmm, There's still a lot of artist to feature on the show, so Idol must also focus on this too.
•Selection Process - Yeah I must admit, season 12 offered a new twist on this process, when they introduce the Las Vegas week, but I somehow felt that it was just did to manipulate the result or maybe, such phase doesn't really differs on the other, all it does is prolong the process. They should come up with a better twist just to give their audiences something new something that would make upcoming season different from the previous.
• Judges - Honestly, I kinda like previous AI judges, for there's variety on their comments which I think makes them more interesting however, I think they somehow went overboard, the feud between Mariah and Nicki turned out to be quite annoying. So if that so, I think Idol must come up with a set of judges with a good chemistry yet still has variety.
Overall, what American Idol mainly needs are Variety and impressive Modifications most specially now that competitions had gone bigger and tougher. Well, these are just my opinion, I'm not an expert when it comes to such field, I'm just another avid viewer who was concluding things based on observations. Criticisms are well appreciated.