The Junior contest is also smaller in the number of  countries that are going to participate, not only because of the contestants’ age.

Only sixteen countries are going to take part into the 2017 contest. This means that we lost one country, in 2016 seventeen countries took part. This is because Israel and Bulgaria have withdrawn, but Portugal has returned to the Junior Eurovision.

SOURCE: Wikipedia.

Country Artist Song Election
 Albania To be decided
  To be decided
 National Final

23th September 2017
 Armenia Misha   To be decided  Internal Selection
 Australia   To be decided   To be decided  UNKNOWN
 Belarus  To be decided
  To be decided  25th August 2017
 Cyprus   To be decided  To be decided UNKNOWN
 Georgia   To be decided  To be decided UNKNOWN
 Ireland   To be decided  To be decided Junior Eurovision Éire (unknown dates)
 Italy   To be decided  To be decided UNKNOWN
 Macedonia  To be decided  To be decided UNKNOWN
 Malta Gianluca Cilia  To be decided National Final (1st July 2017)
 Netherlands  To be decided
  To be decided
  Junior Songfestival 2017 (16th September 2017)
 Poland To be decided
 To be decided  Krajowe Eliminacje (1st October 2017)
 Portugal  To be decided  To be decided  UNKNOWN
 Russia Polina Bogusevich “Krylya“[18] National Final (3rd June 2017)
 Serbia  To be decided To be decided Internal Selection (unknown dates)
 Ukraine To be decided
 To be decided (National Final 25th August 2017)

We will also have huge changes at this year’s contest. The on-line voting will be used for the first time in Eurovision. The JESC final will take part the next 26th November (Sunday), so the on-line voting will start two days before (Friday) and will end at 15:59 (CET) in Sunday.

To vote, the audience will have to see a recap of the 16 competing entries. Then, the voter will be able to see 1 minute of the live rehearshals. Each voter can vote once (we suppose this because the IP of the device will be registered).

There will be a second voting round after the 16 live performances at the final. The voters will be able to vote during 15 minutes. This two-round result will be combined, and will give the 50% of the points (it’s like a kind of Televoting). The other 50% is going to be decided by the juries.