More Benny. More Kevin. More Castiel. More Tablets. More Felicia Day. And a new chapter in the Winchester Brothers’ journey that will lead them to seek out how exactly they fit into being “Men Of Letters.”

Those are just some of the scoops and spoilers that came out of a Q&A earlier this week with Supernatural Executive Producer Robert Singer, who answered questions following a press screening of last night’s “As Time Goes By.”

Here are the highlights:

Winchester mythology How much of a challenge was it to add more to the Sam/Dan history by having Grandpa Henry (Gil McKinney) enter the picture? “We make this stuff up as we go along,” laughed Singer. “But we try to use what we’ve done before and be able to spin out from there and tell interesting stories and get into backstory like this.”

We haven’t seen the last of... Benny, Kevin, Castiel, Crowley and, the big news, Felicia Day, who will be bringing Sam and Dean a case later this season as Charlie. Singer explained: “Every season we like to bring the season full circle and get a lot of questions answered of that season, but then pose new questions for whatever the next season is going to be... I think all these people we introduced will have a payoff.”

A home for Sam and Dean? Even though they were warned to leave the box from their grandfather and depart, the guys will stick around the Men Of Letters bunker for awhile. Singer teased that we’ll see the new digs in the next episode ("Everybody Hates Hitler") and it’s a “really stunning set. It’s full of mysteries [and] it’ll become kind of a home base for the boys. We’re really excited about it. After eight years of never having a home base, this will be home base for quite some time.”

He also said Sam and Dean will actually get some pleasure in setting down some roots.

Tablets, Bunkers & Winchesters, oh my! We’re not done with the Tablets, folks, and like them, Sam and Dean will have to be quite protective of the bunker. Said Singer: “The information that’s contained in this Men Of Letters bunker, if it fell into the wrong hands, would be quite a powerful weapon against the boys, so it has to remain a secret and guarded closely. As we go down the line into the rest of this year and hopefully next year, that sort of dramatic turns will take place because this is an important place.”

More rocky times for Sam & Dean? With the boys at odds much of the first half of Supernatural Season 8, there will be more conflict, but Singer promises, a different kind: “It’s not necessarily the conflict of ‘do I want to do this?’ or ‘what’s my plans beyond closing the gates of the Hell?’ or any of that. It’s a new conflict. I won’t tell you any more than that but as always, there’s always something going on between them.”

He did add that the bunker will afford the guys time to renew their ‘bromance’ and we can expect “a big emotional talk” between them, too.

Amelia could return Sam may have busted her heart but good. However, don’t rule out a return of his lady love. “We think she’s a really valuable character,” Singer said. “We liked her a lot and certainly it creates a good complication in Sam’s life. Again, we’re just kind of doing the end of the season now in the room. I know that we’ve talked about bringing her back.”

Why Did Henry have to die? No shocker here since the writers know Sam and Dean work best solo. Singer said the plus side was the guys were able to make a connection with a relative they never knew, but “one of the themes I think that we’ve always sort of played is that people they get close to, it doesn’t work out so well for them and they’re kind of traditional loners and what they have is each other.”

Season 9? Please!? “I think creatively it’s been good,” Singer said. “I think by and large the network is happy with our numbers. If I were a betting man, I would bet that we would be back.”

Jim Halterman is the West Coast Editor of TV Fanatic and the owner of JimHalterman.com. Follow him on Twitter.