The present situation is:
9:30am Mass
Local congregation
I usually play the organ
Choir
Children's liturgy
Mixture of hymns - traditional and contemporary (but not too contemporary)
Occasional sung proper or choir item
Good Congregational singing
Alternate between Missal tones in english and the St. Anne's Mass
11am Mass
2 other organists rotate
Much more ethnic congregation
Polish/ Slovakian choir who sing from time to time - piano, guitar, quite hands in the air
Adult altar servers - lots of incense

Very poor Congregational singing - only a handful of very traditional hymns used
Missal tones in Latin every week
Now, I hope that we will be able to marry the efforts of the choir and reasonably good singing from the 9:30 crowd with the solemnity of the 11:00 Mass with the Polish choir coming in every now and again to do their thing for the Eastern European community. However, one or two people are already mumbling that we'll "have to go more happy-clappy to get the children engaged" and that the incense will have to go because "it would not be fair to put children through that", etc, etc.
Is it possible to have it all, or at least an element of everything? Do we go for the missal tones in Latin or English?
My plan would be to stick to the missal tones in English and use the Missa de Angelis (which we have done before) if we ever wanted to sing a Latin setting.
Any thoughts/ advice would be welcome.