Digital Mixing Consoles are the standard today and they range from just a few channels to hundreds depending upon your needs. And many of them can be remotely controlled from a Tablet or Mobile Phone.
Video Walls and Large TV Displays are common in many Churches today. They last much longer than traditional projectors and provide the "WOW" factor for stunning visuals.
From simple "White" or full concert style multicolor lights, it can make a huge impact on how people feel in your space. Static, Moving, and Dimming Fixtures are popular in all kinds of Churches. And reliable wireless control is now commonplace.
Especially with the shutdowns from the Covid-19 virus, more and more Churches are staying connected with their Members through live streaming of their services. It's more affordable and easy to do than ever before.
One of the most important but often ignored facets of your space is Acoustics. Properly designed and installed acoustic solutions help to lower the cost of adding electronic equipment to overcome sound issues.
In some rooms, a Laser or DLP Projector is more cost effective or necessary due to the architecture. There are many affordable options for projectors, screens, and even paint on screens.