What I would adjust in the "New Player Pack"
I just bought the 'New Player Pack' on an my year old account because those happened to be 4 champs I was missing (Not morgana), While definitely a great deal, the champions inside are somewhat questionable. I "trained" a few newbies, and they tend to want overly-understandable champions in the very beginning. Ekko, Lee Sin and even Wukong's invisibility and Jinx (swap mechanic, rockets cost mana) are possibly too complex. As much as I appreciate the great deal, I have reason to believe giving a champion for each lane (Instead of 2 junglers, the hardest role in the game for beginners) and making them either very approachable or very easy to learn - hard to master.
My suggestions would be something like the following Top: Cho'Gath. Cho'Gath's kit is in my eyes very friendly towards new players. His silence and knockup are fairly easy to land and his ultimate is both simple and incredibly fun. The grow mechanic will show the player how characters all have
Mid: Xerath. While his Ult is quite possibly a very newbie-unfriendly mechanic (too big for the screen). The rest of his kit learns the player the power of outplaying the opponent using range. His ult might be a reason for him to not be proper for this role though. (This role could also be fulfilled by Morgana)
Bot: Caitlyn. Caitlyn has, just like Xerath, better range than her competitors. This gives the newborn ADC player proper chance to both farm (somewhat peacefully), which is a very important skill to master, and also to harass the opponent with basic attacks. She is also somewhat calm when it comes to her kit, and this can give players the time to pick up on ADC without having to research the champion first.
Support: Morgana. This is probably the right call. A Champion that would also suit this role is nami. Nami has very strong heals, which can make an upcoming Support player learn how to play in such a way that he himself does not die, yet is able to keep his ADC alive. A very helpful champ when trying to learn the basics of support.
Jungle: I am not sure about this one, Maybe something like Sejuani or Warwick. A champ with strong CC is an easy pick-up when it comes to ganking, whereas a champ with proper healing is a great way of learning how that staying healthy in the jungle does wonders.
River: Shen. Hehe
Anyhow, this is just me overthinking things. Theres probably a lot of great players right from the start, but the truth is, most players need a little while to pick the basics up and learn everything League has to offer. Selling a starter pack to them including Lee Sin might just make things more complicated for new players than they have to be.
Kind Regards, Khanzax