Can anyone give me a realistic look at how long it will take to get SWs characters pictures and autographs? This will be our first vaca at The World and my son will want to meet all the characters. How long are the lines? It's really hard to plan something when you have no idea what to expect

TIA
This is one of those questions that's hard to answer...If you want every single character it will take you a long time. I break it down like this:
Disney SW characters

ne of the longest lines, in the sun all day, plus they rotate. So you can start making the line when Minnie and Donald are there and when you get to the front of the line, it's Mickey and Goofy...at least 40 minutes on this line to get one group.
Chewbacca and Ewok: another long line, more shaded. It's long because Chewie has to take more frequent breaks and he's so lovable...at least 40 min. in this one. You might get lucky and get Chewie with the Ewock or by himself.
Darth Vader: long line, completely under roof. What can I say, everyone loves the Darth Lord. Usually 45min.
Clone Wars: Again another rotating quartet. You might get Ahsoka by herself or with Rex or Cody, Asajj might come and take o ver. This one is about 30 min. Again completely in the sun
Queen Amidala: In the sun, she meets by herself, it could take about 20 min.
Darth Maul: Very popular, semi in the shade, it could take 30 min.,
Bobba and Jango Fett: rotating characters,most of the time in the sun. It can take 30min.
Jedi Council: rotating characters, between Anakin, Mace Windu, Kitt Fisto and Shaak Tii, you can get 2 or 3 or all 4. In the sun. About 20min.
Droids, Luke and Leia: In the merch. tent, so nice and cool, again rotating. It could take 40min.
Rotating characters are the easiest ones to get since there's no line for them.
So here's what I suggest....make a plan and priority.
If you want the Disney SW characters get there as early as possible and start making that line...the same for Chewie and Darth Vader...and then go to the rest of them.