I personally think that Jump Spell should be unlocked at Town Hall 8, it is currently the only town hall that does not unlock a Spell, excluding Town Hall 11.
Doing this will make Spell Factory 5 unlock Freeze Spell again, and Spell Factory 6 will unlock Clone, however will not give extra spell Storage.
Freeze Spell Level 2 will also unlock at Town Hall 9, as there is only Level 1 at that level.
