After watching Bob's video a couple of ideas popped into my head.

First I thought of adding telepathic communication between Qui-Gon and Obi-Wan telling him the right time to switch the field gate's attention to him and open up the fight between Qui-Gon and Maul.

Something simple like "Obi-Wan, now!".

I then thought that perhaps the Sith would be powerful enough to intercept these telepathic messages and you could have Maul's trailer monologue or parts of it play over his glaring over the kneeling Qui-Gon as a form of telepathic taunt.

Maul never says anything during the duel which some people see as cool but I personally find the mental sparing in saber duels are always the important thing, the sword play was a metaphor for what was going on in the combatants heads.

I also thought that perhaps ditching the shielded room altogether would be an improvement and just have the Gui-Gon part of the fight take place on the up walkways when Obi-wan is recovering from being kicked down a few levels by Maul and the second half take place when he has jumped up too late to assist his Master.

The powerstation is one giant death pit do we really need another less impressive looking one?

Finally what if Obi-Wan never gets official Council permission to train Anakin and they barely tolerate his defiance because they don't want Obi-Wan to leave the order?

That would set up the cold distance that the other Jedi keep between them and Anakin and make them come across as smart enough to remain constantly vigilant over his progress.

It would put more pressure on Obi-Wan as he is personally responsible for Anakin's training and not the Council.

As it is we don't really see Anakin in the temple between being rejected by the council in TPM and being a fully trained Jedi Knight in ROTS.

If Obi-Wan is home tutoring him he may not even be allowed access to the temple until a short while before he sets fire to the place for not making him a master.