There isn't a reason to tune into next week. Everything is standalone. Nothing carries over. They've completely excised the necessary genre convention and it's the reason the show still has that "saturday afternoon '80s/'90s serial" feel to a large degree.
You can absolutely due a procedural, but in this genre, you need some sort of running thread in the background. The X-Files had the conspiracy. Alias had Rambaldi. SHIELD has...nothing.
That's not true at all, but they need to do a better job of highlighting the ongoing threads that they have established. In the first 8 episodes we have:
'The evil organization working on Extremis'
'The mystery of Sky's parents'
'What happened to Agent Coulson'
Honorable mention
'What happened to Asian lady in the past' - which verges on pure back story padding such as what we've learned about Agent Ward, but they've been playing it close to the vest enough to warrant mention
That's 3 mysteries and an ongoing antagonist plot. AoS needs to build up the external threats more, but they are there.