Unlike the Avengers, the Guardians of the Galaxy, the X-Men, the Fantastic Four, or even the Justice League, Spider-Man’s more or less a solo act. Yes, he’s been part of the Avengers and the Fantastic Four in comic books, but in the movies he’s now a lone Marvel Comics hero over at Sony.

But as the Amazing Spider-Man franchise builds to the (rumored) introduction of the Sinister Six, Spidey could be in need of a little help. And he just might get it, judging by producer Avi Arad‘s reaction when asked whether another Marvel superhero might appear in the next film. Hit the jump to see what he said.

Den of Geek recently sat down with the producer and asked about possible Marvel superhero cameos in The Amazing Spider-Man 2. Unsurprisingly, Arad demurred.

Uh… I’d rather not answer that at this point. This is what the word ‘spoiler’ means. We want to always leave the audience with a couple of surprises. All of a sudden, you feel like, yeah, there’s a continuity. So if we say today how we go about it, we’d take away from the surprise of the movie.

That’s not a confirmation of any sort, but his hesitation about spoilers certainly suggests that there’s something to spoil. It’s unclear, however, whether Arad’s hinting at another hero from within the Spider-Man universe (for which Sony holds the rights), or whether there’s any kind of deal in the works with Fox or Marvel to introduce one of their stable into Peter Parker’s New York City.

Spidey himself is by far the most prominent superhero in the Spider-Man universe, but he does have a few allies. It could be that Arad is thinking of Felicity Jones‘s Black Cat, who’s expected to appear in the upcoming sequel, or another lesser-known hero. The more intriguing, but far trickier, possibility is that the Hulk or the Human Torch will drop by Queens to say hello.

Whatever the case, Arad’s non-statement appears to fit with Marc Webb‘s earlier comments about wanting to expand the Spider-Man universe. The director told press last month that The Amazing Spider-Man 4 “might not just be a Spider-Man movie.” If they’re building toward something more ensemble-based, it’s probably a good call to start beefing up that supporting cast now.

The Amazing Spider-Man 2 opens May 2, 2014.