Yes when they showed us the gold skinned aliens, I instantly thought of Adam Warlock. When their leader was revealed as having the name Ayesha, I realized that was the current name of HER, the female counter part to HIM, also known as Adam Warlock.
Now they DID state the cocoon the Collector had in his collection was the cocoon of Adam Warlock, however they didn't really confirm that he was in it.
Now Guardians 2 shows us that Adam's origins will be different in terms of who made him and that his cocoon is different from the one we saw in Guardians 1.
However....the cocoon from Guardians 1 could easily contain THE MAGUS, evil counterpart to Adam Warlock.
Still, it looks like the movies will be sticking with the concept that Warlock will be the cosmic champion of life to stop Thanos, just like in 1977 when Thanos was stopped by Warlock, and again in the 90's with the Infinity Gauntlet.
Now if only Captain Mar-Vell would be in the movies