1:29 - Ezra: "Hera! Am I glad to see you're alright!" Luke says something similar in A New Hope: "Ben Kenobi? Boy, am I glad to see you!" [30:35]
1:41 - Maul (after Kanan asks who it is): "Just an old friend, Master Jedi." The phrase "old friend" is also used in Attack of the Clones (where Palpatine suggests "an old friend, like Master Kenobi" to protect Padmé [6:34] and Count Dooku calls Mace Windu "my old Jedi friend" [1:50:24] and just "old friend" [1:56:05]), in Revenge of the Sith (where Obi-Wan says, "Goodbye, old friend" to Anakin as he leaves for Utapau [51:13] and Yoda refers to Qui-Gon as "an old friend" [2:09:56]), in A New Hope (where Leia sarcastically says, "We, uh, ran into some old friends" when Han asks her and Luke where they've been [1:31:33]), in The Empire Strikes Back (where Yoda says that through the Force, Luke will see "Old friends long gone" [1:17:05]), and in Return of the Jedi (where Luke says, "I have a promise to keep to an old friend" [37:37] and Han calls C-3PO "an old friend of mine" [1:11:53]).
4:21 - Maul (after Hera says she knows nothing about Kanan): "That's not true." Luke says the same thing in The Empire Strikes Back when Vader tells him about his father: "That's not true. That's impossible." [1:51:21].
6:46 - Ezra (upon seeing Bendu): "I don't believe it." Luke also says, "I don't, I don't believe it" in The Empire Strikes Back, after Yoda uses the Force to get his X-wing out of the swamp [1:13:10].
7:21 - Bendu (about bringing the holocrons together): "Such a vergence carries grave danger." The phrase "grave danger" also appears in The Phantom Menace (Yoda tells Obi-Wan, "The chosen one the boy may be; nevertheless, grave danger I fear in his training" [2:06:38]) and in Revenge of the Sith (Obi-Wan, referring to Anakin, tells Padmé, "He's in grave danger" [1:38:48]).
10:02 - Sabine: "Chopper, magnetize!" In Revenge of the Sith, one of the Neimoidians on General Grievous's ship gives this same command, albeit with a different application, to the battle droids: "Magnetize! Magnetize!" [16:33]
10:36 - Kanan (to Ezra): "Trust me." Han also says, "Trust me" (to Leia) in The Empire Strikes Back [1:20:06].
14:27 - Ezra (to Kanan): "What's our plan?" In A New Hope, Han asks Luke almost the same thing: "What's your plan?" [1:11:56].
17:01 - Maul (to one of his droids): "Terminate the prisoners." Referring to Leia, Tarkin gives the same command in A New Hope: "Terminate her immediately" [1:03:05].
20:08 - Kana (to Ezra): "Trust me." See above, 10:36.