Your major risk is uterine rupture, 0.05% average. This is when the old cs scar can break down causing major maternal and fetal complications. You are advised to have continuous monitoring of the fetal heart in labour and your labour is generally monitored very closely. Some hospitals still off normal IOL including pessaries, hormone drip etc, others not. You will also be advised to give birth on a labour ward as opposed to birth centre.
A normal vaginal birth with no previous section runs risks of 11% EmCS rate, 10% instrumental rate. You can still have a ruptured uterus without a cS scar, but very very rare, and usually associated with mismanagement of labour. You would have a choice of giving birth on labour ward, birth centre or home, and if low risk would usually have intermittent auscultation for fetal monitoring.
You need to weigh up the pros and cons of vbac vs repeat cs. Both run risks.
Risks to baby: 1-2% suffer lacerations during cs procedure
3-4% experience respiratory distress which may require admission to neonatal unit
Maternal risks: persistent wound and abdominal pain, more likely to here admitted to hospital in the postnatal period, more likely to suffer a major haemorrhage and require a blood transfusion, increased risk of infection, significantly more likely to develop a DVT.
Plus you need to look at how big a family you are planning, multiple Cs increase risks.
Vaginal birth following CS, as already stated uterine rupture 0.05%, vaginal and perineal trauma is common, about 90% of women have some kind of tearing, usually reasonably minor, risk of instrumental birth, about 10%, and obviously emergency CS I always a risk.
Look at your personal circumstances, how old is your other child, caring for a newborn and young child is hard work when you're recovering from a cS.
Hope that's of some help.