Mbatha joined Usuthu from the now-defunct Thanda Royal Zulu at the beginning of last season, and after a slow start managed to claim the number one jersey ahead of SuperSport United loanee Boalefa Pule and Zimbabwean Energy Murambadoro.
He clocked up 17 league appearances, scooping three man-of-the-match awards and registering seven clean sheets to help the PSL returnees finish ninth on the table.
However, he is aware the 38-year-old Josephs, who was released by Bidvest Wits at the end of 2017/18, brings vast experience and pedigree to Durban, having won every domestic trophy on offer.
"There's been talk of Moeneeb coming in. With Moeneeb coming in, it doesn't mean he's coming in to play immediately," Mbatha tells KickOff.com.
"He's bringing competition to the team, which is a good thing for the team. If I'm going to sit there and take it as someone who's going to take my position then I'm not going to grow as a person.
"I must look at it as yes, he's got a lot of experience that I'll gain from him, but at the same time I need to also fight and keep the jersey, because when we closed I literally think I was doing well for the club.
"If I continue from there I don't think there will be any reason for the coach [Cavin Johnson] to take me out."
Meanwhile, the 29-year-old is currently giving back to his community by donating school uniforms and food vouchers to the needy.
"I've recently started a foundation which is the Siyabonga Qhamukile Foundation. Qhamukile is my grandmother's name, so it is basically to thank her because she was a very kind-hearted person. She loved giving back to the people," Mbatha explains.
"So I'm just carrying on that legacy of doing something on her behalf. I'm actually donating school uniforms for now and it is growing, growing. If it grows to where I want it to be, one day the foundation will see us feed families. It is to see us making sure that one family if not more, has shelter over their heads ... That is our biggest hope right now.
"I'm from Umlazi and I always believe charity begins at home. I've started with two schools from Umlazi at BB section from where I come from and I'm moving to C in Umlazi as well.
"My granny was from F section in Umlazi so I started with neighbouring schools and I'm moving to KwaMashu with another two schools. I'll top it up with other schools from Lindelani. So I'm just busy with that right now.
"Hopefully we can give out food vouchers that can last for six months. With the right sponsorship I think it is possible."