Ever since the day that I heard an evil Asgardian would be appearing in Marvel's Agents of SHIELD, I was rooting for it to be Amora, or as she is more commonly known, The Enchantress. Consequently, I was slightly disappointed when we received her sister Lorelei instead. I mean sure, Lorelei was a great character, but I still prefer her sister. I'm fairly certain that Amora and Sif would've had much more clever banter between them than Sif ever had with Amora's sister.
Now while we haven't received any official confirmation or even rumors at this point of Amora's involvement in Thor: Ragnarok, I think that introducing her and her bodyguard (Skurge the Executioner) would be an important move to set the stage for another Marvel property: The Masters of Evil. Since Baron Zemo is confirmed for the upcoming Captain America: Civil War film, the founding members have in the past or are set to in the near future appear in the MCU. One of the more prominent incarnations of The Masters of Evil includes the Enchantress, the Executioner, Baron Heinrich Zemo, Abomination, Crimson Dynamo, Wonder Man, and the Wrecking Crew.
Assuming that Amora and Skurge appear in Thor: Ragnarok, the only characters missing from the above roster would be Wonder Man and Crimson Dynamo. Now I know what you're thinking! You think that The Wrecking Crew have yet to appear in the MCU and its shared tv universe. I disagree, and here's my proof! For those who don't have time to read another whole article, I'll summarize: I think that Agents of SHIELD's Grant Ward will form the Wrecking Crew. For those who haven't been paying attention, Ward has in the past three seasons of AoS turned out to be a traitor to both SHIELD and HYDRA, and now has gone off on his own with a small band of misfits that I think will form the Wrecking Crew.
In conclusion, I really want Enchantress and Executioner in the MCU and I'm sincerely hoping their appearance leads to The Masters of Evil!