Tom Wadsworth, in a recent podcast, ran through his 9 points for change to echo the NT church in our modern practice.
Also see his full lecture on this.
1. Change terminology.
2. Make edification the purpose of our church gatherings: 'one anothering' each other.
3. Less concert more content.
4. More speakers, shorter speeches.
5. More dialogue, less monologue.
6. Break big groups into small groups.
7. Create edification 'rooms'. [like the small lounge-like meeting rooms at GBC]
8. Incorporate the meal: the Last Supper was a meal, not a shot of wine and a cracker.
9. Make love an assembly mandate (I Cor. 13).