I see what you mean, but we don’t see Agenda as a full replacement of the Calendar app, for keeping track what’s up in your schedule you probably still want to continue to use the Calendar app as it just gives a better overview in exactly that next 7-10 days range indeed. While Agenda is more aimed at being the app you live in during “today”.
There’s a couple of workarounds. Like somebody describes in this talk article you could create a note for the week and assign it the date range of the week. Each time you selected this note it would now show your next week’s calendar on the right. You could pin it as well to stay at the top and it could kind of function as a scratchpad to capture ideas you need to file later on.
Alternatively, you could create already notes for the upcoming events that you likely want to capture ideas for (e.g. next monday’s team meeting), that way you already create the places to capture notes without a need to use the calendar. For quick access to these you could:
mark those as On the Agenda
keep these first in an Upcoming project and move them later to another project
#upcoming or similar tag to the note and create a smart overview for them
create a smart overview that always shows the notes that have a date assigned in the next 10 days