Yup, pretty much. Especially Kuuga. The later shows had some occasional violent moments (Blade Episode 36, for example), but it grew less and less over the years.

Hibiki had some really gruesome moments early one.

The final fight with Kuuga was pretty bloody.

Well, Kuuga just had that bare fisted beat down where he had the other Grongi literally bleeding, so...Yeah :lol

Kuuga was really bloody and he used his fist half the time.

Ryuki is probably up there considering you see the Riders being killed by their contract beasts upon the destruction of their Advent Deck.

Unless the next 15 episodes (I'm 35 in) are the bloodiest things around, that's a damn lie. Kuuga actually has some of the most tame and subdued fights I've seen.
Though he does use his basic fist fighting form a lot, yeah.

Will they have V-Cinemas later on after the series is done along with a crossover movie with Ghost?

I can imagine Chaser & Mach V-Cinemas.

Chaser: Explain how he was created and gaining a human form. Plus this can give us a chance for Rider Chaser to use the viral cores in Mach Driver form.

Mach: Maybe his story can take place after the series. Or during his trip in overseas. Plus for a chance to reveal the lost Signal Bikes: Yukkuuri, Toosaan, Ittsuu & Kattoobi. Better be different colors though.

Some of the early Showa series could get pretty gruesome. The special effects weren't great, but if you stop and think about what some of the gruesome deaths they're trying to depict would be like, it can get pretty dark. Shocker really loved slow disintegrations.