According our laws, if nobody got >= 50%+1vote, elections going into second round with only two candidates (1st and 2nd places). I don't think that he would win in second round.
We have a little bit strange situation with parties. We have several pro-government parties but nobody knows their names, their leaders or any other information about them (I mean that nobody talks about them in media. Media is totally filled by one person). Also we have several opposition parties but they haven't access to media at all (except BelSat (oppositional sat-channel, hosted in Poland, not translates through cable network)) => nearly nobody knows something about them (only who have affairs with politics or strongly interested). Also they haven't places in parliament. Sometimes they drops leaflets or organizes protest actions but rarely. So, only in election time people have ability to get some knowledge about political state. On this election out TV even showed every candidate twice (first time individual and second time on debates (without one of course)).
So. On elections we have only two parties: "Lukashenko" and "Other candidates". On previous elections opposition promoted a single candidate - he found him in prison after election. On this - there was 9 candidates (except L), 5 of them now in prison.
Most "famous" party - it's BPF (Belorussian Popular Front), also we have BCD (Belorussian Christian Democracy), BSDP (Bel. Social-Democracy Party) and some other.
On this elections second place taken by Sannikov, third - by Rymaschevsky.
I think on next elections will be somebody new but if he will be the similar to the previous (by political power) - Lukashenko will be elected for the next time again... and then Nikolay Alyaksandravich Lukashenko will grown up...