I have read some old stuff from Knightquest and No Man's Land and I have to say it's a far better take on Tim than what modern portrayals have done. He's really not that interesting I mean yeah he's smart but aside from being upbeat and whatever he's not really doing anything. Recently he's been a duck and while funny it wasn't memorable and I feel like fans hate on Damien because the writers often neglect Tim. Honestly the best direction I've seen done with Tim is what Batman Beyond Return of the Joker did. I know some might not like it but Tim being the "light" or whatever is what makes him having such a tremendous fall from grace so good. Essentially I'd like to see Tim become proof about Joker's One Bad Day line.
For me I'd like to see Tim make a critical mistake that could have happened to anyone but for it to get him caught by a regular psycho and held prisoner and for the Bat Family to shake down the major players searching but to over look the one person who actually has Tim because he's a nobody. I think that'd be interesting especially if it took a very real approach and showed Tim slowly lose hope and his mind. Only to be found by chance in ACE Chemicals of all places but far to late in a confrontation where he attempts to escape and in a fit of panic stabs a friend of his by accident(mistaking him/her for his captor) and freaks when Bruce sees running away and going into the chemicals like Joker.
I just like this idea because it'd show a lot of the dangers being a vigilante can really have especially by having a regular person capture and torture Tim. I also like the idea of Tim giving into fear and panic and acting out of blind fear as well. I think Tim would be a good threat to the Bat Family especially as I can see him dividing the BatFam like one side wanting to take him out the other side wanting to help him. I can also see Tim becoming the Loki of the Family and roasting them individually even himself I also like the idea of him roasting heroes and the legal system.
I can see Tim as a killer targeting criminals at first making it look like he's trying to be like Jason and then shocking Bruce by killing innocent civilians and saying to Bruce "Really are you surprised I mean how little do you really value the lives of criminals that'd you'd over look me killing some scum bags but not civilians? Guess your cod only matters when it suits you." Essentially I like the idea of a Law Abiding Citizen story arc where Tim actively tries to get the Bat Fam to go against their beliefs and completely tears them apart in the process as well as permanently damaging Batman's relationship with the GCPD.
Now the reason I like that idea is Bruce does let killing slide which diminishes his code he let's Jason and Damien get away with killing and his hypocrisy is never addressed. I also like the idea of Jason being put on the spot by another fallen Robin since Jason started out as a rebel but despite everything he's back to taking orders from Bruce. Same with Dick he left to become his own man but came right back and it's just really tiresome so it'd be fun to see Tim break the mold and become estranged but not really go back to being part of the family. That's kind of why I like the idea of him being the Loki of the BatFam. Also it'd make for a tragic story for Tim to be hell bent on committing suicide by Bat to make a point of some kind.