I've actually got tickets to the Preakness this year! It'll be just my second time at the track (I'm going to see Shared Belief at the CT Classic this weekend as my first time). I'd love to see Texas Red there, but I think the earliest he'll be back is for the Belmont.
I mean at any track haha, not Pimlico in particular.
I actually welcome newcomers in the latter Triple Crown races. I like to see as many Derby runners return as possible, but if a horse is going to win the Triple Crown, I think they need to earn it against horses who didn't necessarily race in the Derby.
The Preakness field is limited to 14 starters. If more than 14 want to enter, then the first 14 with the highest lifetime earnings will be allowed to start. So no, there are no points involved regarding the Preakness which opens the field up to Derby starters and non-Derby starters. However, I believe that the Derby winner is given first choice to run regardless of earnings and maybe some preference is given to the other Derby starters. Not sure about that though.