EtherChannel over 802.1Q Tunneling

Hi Rene,
I recently viewed Q in Q tunneling for Etherchannel, and i have below query, please advise.

Now the Etherchannel is formed across the Switch 1 and Switch 4, is it the trunk link, suppose i have Vlan 10,20,30,40 on Switch 1, so once etherchannel is formed, all this Vlan will pass through it?? without any extra configuration on Service provider Network??

Does this link also send VTP message?? can we also make Switch 1 as Vtp server and Switch 4 as VTP client, and after that If we create New Vlan on switch 1 for example Vlan50, will this Vlan will pass over Etherchannel to Switch 4 since switch 4 is VTP client.