They are referring to the 1st episode of Season 4, not episode 3x10.
Not that I believe this is a true spoiler, I will hide it just in case. Synopsis for 4x01:
Part 1 of 2- Barry Allen goes out with Felicity but can't stop regretting Cisco's death and he does something about it.
-People should not be afraid of their governments, governments should be afraid of their people. V4V

this is the synopsis I believe:
Barry is tormented by his vision of the future where Iris is murdered by Savitar. When a criminal named Plunder shows up in Central City, Barry recalls the villain's presence in his vision of the future and fears that if he catches Plunder, it will cement Iris' fate. Confused about Barry's hesitation to stop Plunder, Wally decides to step in as Kid Flash. Caitlin offers Julian a job.

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Lol. Racists always use that, "It's just my opinion" garbage to defend being a pos. The problem is, I'm intelligent and aware enough to weed through that rhetoric.
Btw, talking about not liking another black character didn't help your argument. Just so we're clear.
There is no Flash without Iris West.

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I see you've made a new friend at the Klan meeting. You're both different sides of the same coin.
There is no Flash without Iris West.

Right it'll go on for 7 seasons before it dries out. And the DCEU is doing a Flash movie with an actress already cast as Iris. They don't need Candice anymore. Arrow did that to prop up Olicity, they purposely didn't give her a story line to write Olicity fan fiction. They realized their mistake and brought Laurel back.

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Not to that extent; and not to the point of any kind of synopsis being available before the previous season ends. I can't believe anyone thinks this is real.
"What's the matter, sir? It still tastes like cream of corn."
"Except it's deviled ham!"

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There's virtually no chance the writers have written the first episode of next season already. Anyone can submit information to IMDB. It's basically Wikipedia, without citations.
"What's the matter, sir? It still tastes like cream of corn."
"Except it's deviled ham!"

Read my signature. You sound like the rest of these nuts on here. Go ahead and abandon ship now.
There is no Flash without Iris West.

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Nah, Iris is the Iris of The Flash. She has fans. Killing her kills the show.
We won't miss you when you stop watching.

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If Iris also die the rating will plum too

Watch the show's ratings plummet if Cisco dies. It should be Iris.

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I'm 110% certain that's a troll who sent that information to Imdb.
Besides, Cisco has died multiple times.
S1E15 - Eobard Wells kills him with a vibrating hand through the chest
Arrow S4E8 - Vandal Savage kills Cisco and almost all of Central City in a magic blastwave
S2E13 - Technically Earth-2 Cisco but still Cisco, Zoom killed him with a vibrating hand through the chest
I don't want him to die though.

Yeah, I know some people don't really care about spoilers, just wanted to warn those who do.
Tommy how's the peeping?

Whoa. I had to go look.