The 11 times capped international suffered damage to his anterior cruciate ligaments, medial collateral ligaments and tendons at a ruck in the closing stages of the match over the Springboks.
But despite suffering some dark days the 27-year-old is pencilled in for a return to action in Cardiff Blues A fixture in December.
“Ellis is getting closer every week,” said Cardiff Blues head coach John Mulvihill.
“It was great to see him in his rugby kit today on the pitch at Pentwyn.
“He is out and about running, he was passing and doing a little bit of breakdown work, going through some return-to-contact drills. So he’s not far away.
“It’s another step in the right direction for him.
“He struggled for quite a while, but his improvement over the last couple of weeks has been excellent.
“He looks really good and is in a good space at the moment.
“We hope to see him with the main squad in full training sessions towards the end of this month.”
At his best Jenkins is one of the best breakdown specialists in the Northern Hemisphere and has been greatly missed by both club and country.
Despite being confident of his return Mulvihill has urged patience and is wary of throwing the back-rower straight into a Guinness PRO14 or European fixture.
“Then, if he is up and training, we look for some game-time in December,” said Mulvihill.
“If the RFC were on, he would play 20 minutes off the bench for them.
“If we have an A game between now and then, he might get 20 minutes in there.
“I think it would be a bit of a big ask to throw someone who hasn’t played for two years straight into a PRO14 or European game.
“We hope to have an A team fixture, possibly against the Ospreys, on Monday, November 30. That may be a bit too early for him, but then we are looking to have another one mid-December which could serve us really well.
“We will have a plan in place and we are really looking forward to seeing Ellis back on the pitch.
“He’s been in and around our environment for the last two or three weeks and he was quite vocal in a meeting yesterday. That’s the leadership quality we have probably missed from him.”
